Telepole Wide Range Operating & Maintenance Manual Document # 15-0008 Revision 3 May 2007 The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent.
15-0008 Revision 3 May 2007 REVISION LOG: Telepole Wide Range Operating & Maintenance Manual Date Revised Pages Comments 0 6/01/1998 N/A Original Document number PRIR28T8.DOC 1.0 6/03/99 Revision # 1-4 Updated version, revision log, table of contents. Calibration instructions modified. Chapter 5 Chapter 7 Electronic Block diagrams description chapter added. Troubleshooting chapter added. Chapter 8 Appendix 2 – Calibration.
MGP Instruments reserves the right to change specifications without advance notice Table of Contents 1. THE TELEPOLE WR METER................................................................................................................................ 5 1.1. 1.2. 1.3. GENERAL DESCRIPTION .................................................................................................................................... 5 FEATURES ..........................................................................
8.14. 8.15. 9. DETECTOR FAILURE (PC 2003) ................................................................................................................... 41 ELECTRO LUMINESCENCE DOESN’T TURN ON .............................................................................................. 42 MECHANICAL INSTRUCTIONS ........................................................................................................................ 43 9.1. 9.2. 9.3. 9.4. 9.5. 9.6. 9.7. 9.8. 9.9.
1. The TelePole WR Meter 1.1. General Description The TelePole WR (Wide Range) is a gamma meter, mounted on a telescopic pole, designed to obtain readings in wide radiation fields. The detector, with its two GM tubes, features a wide measurement range of 50 µR/h to 1000 R/h (0.5 µSv/h to 10 Sv/h). The rugged, low maintenance TelePole can be used as a stand-alone instrument or it can be integrated into systems, using existing equipment and software.
1.2. Features • • • • • • • Wide measuring range. Rugged, sturdy construction combined with low cost replacement parts. Built-in RJ-11 connection for use with a WRMPlus transmitter. Optional WRM2 Radio Kit Part Number WR2-A005 Built-in RS-232 communication. Internal alarm thresholds for exposure rate. Dual-output “DigiLog” display combines a stable and accurate digital readout with a fast responding analog bargraph. • Display backlight offers bright illumination for use in low light areas.
2. Specifications Detector GM tube ZP-1301 (or equivalent) - high range GM tube ZP-1201 (or equivalent) - low range Measuring range 0.05 mR/h to 1000 R/h (0.5 µSv/h to 10 Sv/h) Automatic switching between the two GM tubes at approximately 800 mR/h and 600 mR/h, optional firmware to switch 2500 mR/h and 2000 mR/.h. Accuracy ±10 % of reading, within the measuring range Energy response (Cs-137) ±20 % at 70 keV to 1.1 MeV Sensitivity (Cs-137) Approximately 17 cps/mR/h (low range) Approximately 0.
Meter probe connection Standard phone cable Calibrate/Measuring direction ZP-1301 ZP-1201 Response time for small changes Radiation field [mR/h] < 0.6 0.6 - 2.5 2.5 - 20 20 - 60 60 - 400 400 - 2 R/h 2 R/h - 10 R/h > 10 R/h Response time [sec.] 45 20 - 30 5 - 10 2-4 2 2-6 2-3 ≤2 The response time for the increased changes in radiation field is faster for rising filed values then for decreasing changes..
3. Operating Instructions 3.1. Preparation for Use Remove the instrument from the shipping container and check for any physical damage. In the case of damage, report it immediately to MGP Instruments. Do not attempt to install or operate damaged equipment since safety and performance may be affected 3.2. Starting-up Ensure that the detector is connected to the meter. Press the ON/OFF push-button.
Geiger Type ZP 1301 High Range Overflow alarm ZP 1201 Low Range Field 0.01 mR/h 600 mR/h 800 mR/h 1000 R/h Geiger Type Optional 070301 Firmware ZP 1301 High Range Overflow alarm ZP 1201 Low Range Field 0.01 mR/h 2000 mR/h 2500 mR/h 1000 R/h 3.3.3. Reading reset: Exposure rate - While in Exposure rate mode, a long press on the RESET push-button enters the meter into the FREEZE mode (for peak measuring). An additional long press performs a momentary reset of the Exposure rate readings.
3.4. Threshold Selection A threshold value can be selected from a series of 11 threshold values. The value is kept in memory even if the meter is turned off or if power is lost. Threshold values: Exposure rate : 2.00, 5.00, 50.0, 100, 500 [mR/h], 1.00, 10.0, 200, 400, 800, 999 [R/h] To choose the required threshold value, proceed with the following steps: 3.4.1. Enter threshold mode by pressing the MODE & RESET push buttons simultaneously.
3.5. Alarms a. Detector alarm: The Err. LCDs and SPK icon will blink on the display in three cases: 1. The detector is disconnected. 2. The detector high voltage power supply is defective. 3. The detector is located in a background radiation field < 600 mR/h and the low range Geiger is defective. 4. If the detector is located in a radiation field higher than 800 mR/h and the meter displays the following sequence of readings: 800 mR/h, 600 mR/h, 0.
3.6. Push-buttons Function Function Pressing mode Meter on/off Speaker beeps on/off Long Operates laser bar-code reader, the bAr. LCDs Short are displayed. When the barcode is successfully read the Go. LCDs are displayed, accompanied by an audible beep. In case of an alarm condition (threshold or malfunction) the beeper is activated. Pressing the RESET push-button turns the beeper off.
3.7. Battery Replacement Note: The battery compartment is located on the lower right side of the TelePole’s meter. 3.7.1. Slide out the battery compartment cover in the direction of the arrow (open). See Fig. 31. 3.7.2. Insert two C-type alkaline batteries with the correct polarity. 3.7.3. To close of the battery compartment, press the batteries down, place the compartment cover on the battery edge, press the batteries down with the compartment cover and slide the cover into place along the side slots.
Following is the operating procedure. 4.1.1. A short press on the B.CODE push-button turns the bar-code reader on. Three short beeps will be sounded. The bAr. LCDs are displayed. 4.1.2. If the bar-code reading is successful, the Go. LCDs will be displayed. 4.1.3. To save the instrument data (ID, time, date, value, unit, comments) perform a short press on the STORE push-button. 4.1.4. After the saving operation, the amount of available memory space remaining is displayed. 4.1.5.
4.4. RS-232 and WRMPlus Connection Communication parameters Baud rate: Parity: Hardware handshaking: Software handshaking: Stop bit: Prefix: Suffix: Data format: COM-1 9600 None None None One 01 04 8 data bits COM-2 300 None None None One LF CR 8 data bits 4.5.
5. Calibration Instructions 5.1. Preface 5.1.1. Calibration Factors To improve the linearity, the TelePole uses five calibration factors: The two lower factors are for the low range Geiger, from 0.01 mR/h to 800 mR/h; and the other three are for the high range Geiger, from 1000 R/h to 600 mR/h. Note: Optional Switching 070301 Firmware; the two lower factors are for the low range Geiger, from 0.01 mR/h to 2500 mR/h; and the other three are for the high range Geiger, from 1000 R/h to 2000 mR/h.
Where n is the detector frequency obtained in the radiation field. N is the updated measurement reading. Between 300 R/h to 400 R/h, a weighted average of F2 and F3 is used as the dead time correction factor.
Change the factor by pressing the RESET or LIGHT push-button to obtain the desired reading. 5.2.3. Expose the detector to a radiation field of 100 mR/h to 800 mR/h. Note: Use calibration points 800 mR/h to 1500 mR/h when using the optional switching 070301 firmware (2000 mR/h – 2500 mR/h). The display will show: → F2 → F (factor) → mR/h (reading) → ↑_______________________________↓ Change the factor by pressing the RESET or LIGHT push-button to obtain the desired reading. 5.2.4.
The CPU unit counts the input pulses, calculates dead time, averages the results, and displays the reading. To check the CPU unit "calibration" perform the following procedure: 5.3.1. Disconnect the detector telephone connector from the meter. 5.3.2. Adjust the pulser output to obtain a 5 Volts amplitude and 10 µsec width pulse. 5.3.3. Connect the pulser output as follows: (+) to pin 1 and (-) to pin 2. Option: A more convenient and easier way to perform this step is by using the TelePole Pulser Adapter.
6. Setting ID Number Note: Setting the ID # must be done only by an authorized user. The ID # includes 6 digits. The second digit in the ID # sets the instrument type. TelePole’s first digit is (0). Setting and Checking the ID #: • Unscrew the calibration screw located on the back of the meter. Turn the internal switch to the calibration position. • The SET LCD's are displayed. ID# digit Digit’s value Display reading 0.00 2 d1.6 1 d1.9 3 d2.0 1 1 - Long press on MODE push-button (5 sec.
7. Electronic Block Diagrams Description See block & wiring diagram DRW# 12850-50-00. 7.1. Meter The meter unit includes the CPU and the Power Supply boards. 7.1.1. CPU Board Description DRW #12850-40-00, PC #1942.
Speaker Circuit (U13) The speaker circuit is activated in the following cases: a. Threshold level exceeding. b. Malfunction. c. Push-button pressing approval. d. The speaker clicks frequency is proportional to the radiation field intensity. A 3 KHz signal on pin U13/3 activates the speaker.
Input Signals 0U9/3 1 U9/4 2 - U9/7 3 U9/8 4 U9/13 5 U9/14 6 U9/17 7 U9/18 MODE push-button RESET push-button LIGHT push-button low battery not in use calibration mode internal geiger (optional) PC communication Touch Panel The touch panel push buttons are connected to the micro-controller chip in the CPU board via input latch, except the on/off push-button that is connected to the on-off circuit. Display (U17, U18) DRW # 12850-40-00 sheet 2. The display shows the meter readings and messages.
CPU Circuit (U6) The micro-controller circuit manages all the meter activities. EEPROM Back up Memory (U1) The X2C04 is a 512-byte serial EEPROM (Electrically Erasable Prom). The EEPROM stores threshold values, ID number and calibration factors values. Communication Circuit The CPU board contains two separate communication ports. One is the micro-controller communication port used for the SMARTS communication: J4/1 TxD - This is the serial data line transmitted from the meter.
Decoder U11 - 74HC138, sets addresses for the input/output IC’s and UART IC. Address ranges from 8000H to 8700H.
7.1.2. Power Supply DRW #12850-42-00. Option High Voltage Converter J6 Calibration Switch J2 3V to 5V Converter & Low Battery Identification Internal Geiger Internal / External Geiger J3 J5 J1 3V to 12V Converter WRM Communication Geiger J8 H.V. Board Block Diagram High Voltage Converter & Internal Geiger (optional) The high voltage converter and internal geiger components are installed on the board only when the internal geiger is used. As well, a short is performed on jumper E3.
Internal / External Geiger Selection U2 - 74HC132 and port J2/4 are used to select between the internal and external geiger. J2/4 enables to select between operation and display of internal geiger or external geiger. J2/4 = “0” - internal geiger J2/4 = “1” - external detector. 3V to 5V Converter & Low Battery Identification MRX756 (U1) and RCL components convert the battery voltage to 5V, (which is) the meter’s main power supply. Input voltage range: 1.7V to 3V DC. Output voltage range: 5V ±0.1V.
High Voltage Power Supply The H.V. board includes an ORAM 5525 transformer, a voltage multiplier (D1, D2, D3, C8, C11), an RV4192 switching regulator. R3 and R4 are voltage feedback for the switching regulator. H.V. range: 500V to 550V DC. The high voltage is aimed for both geigers. Pulse Shaper Each geiger includes a pulse shaper circuit. Q3 and RC for the low range geiger 1201. Q5 and RC for the high range geiger 1301. 7.3.1.
8. Troubleshooting 8.1. Meter does not power turn ON Meter does not turn on Yes Check power on/off circuit (PC 1942) section 8.2 O.K Check 5V power supply circuit (PC 1945) section 8.3 O.K Check CPU reset circuit (PC 1944) section 8.4 O.
8.2. Power on/off circuit (PC 1942) No Check battery voltage (2−3)V O.K Replace battery No Fix Check battery connector & wires O.K No Battery, connector or wire failure Check voltage between J1/1 & J1/2 = (2−3)V O.K No Press on/off p.b. and check J3/1 & J3/2 short O.K Replace touch panel No Replace Q3 Press on/off p.b. Check (0.2 − 0.5)V DC on Q3 collector O.K Replace Q4 No Go back to section 8.
8.3. 5V power supply circuit (PC 1495) No O.K Battery, connector or wire failure No Flat cable between the CPU card and power supply card is defected or disconnected Press on/off p.b. and check voltage (2÷3)V between J2/7,8 and J2/1,3 O.K No Replace L1 Check pulses on U1 pin 8 O.K No Replace D3 & U1 Check battery voltage (2÷3)V between J9/1 and J9/3 Check 5V on U1 pin 6 O.K O.K No Go back to section.8.
8.4. CPU reset circuit (PC 1944) No Check correct connection between extension card and CPU card Fix O.K No Replace U3 Check on U3/6 O.K No Check on U5/6 O.K Replace U5 No Replace C4 Check on U4/4 O.
8.5. 12V power supply circuit (PC 1945) No O.K Battery, connector or wire failure No Flat cable between the CPU and power supply cards is defected or disconnected Press on/off p.b. and check voltage of (2−3)V between J2/7,8 and J2/1,3 O.K No Replace L1 and Q5 Check pulses on D2 anode O.K No Replace D2 & U1 Check battery voltage (2−3)V between J9/1 and J9/3 Check 5V on U1 pin 6 O.K O.
8.6. Meter does not turn off Meter does not turn off Yes No Press on/off p.b. and check (0.2 − 0.5)V on Q5 collector O.K. Replace Q5 Replace CPU Card No Replace CPU Card Meter OK? Yes END 8.7. Meter parameters are not saved in the internal memory No Replace CPU Card Check pins 5 & 6 on U1 output pulses O.K.
8.8. Display turns off or is incorrect Display turns off or is incorrect Yes No Replace CPU Card Check pulses output on U17 pins 1, 2, 14, 15, 16 O.K. Replace U18 LCD 106198 No Replace CPU Card Meter O.K.
8.9. Speaker does not alarm Speaker does not alarm Yes No Check E1 Unshorted O.K. Fix No Check 12V on L1 O.K. Check 12V power supply on PC 1945 (section 8.5) No Check 1sec on U8/9 and 0V U8/1 Replace CPU card O.K. No Check 5V on U13/4 O.K. Replace U8 No Replace U13 Check U13/3 3KHz ±10% pulses O.K. No Replace U8 Check U8/11 3KHz ±10% bursting pulses O.K. No Replace Q8 Check existing pulses on Q8 collector O.K. Replace S1 (speaker unit) O.K. No Replace CPU Card Meter O.K.
8.10. No communication with the WRM system No Communication with the WRM System Yes No Check WRM transmitter battery O.K. Replace battery No Check telephone cable between meter and WRM O.K. Replace or fix cable Replace "Meter to WRM" adapter O.K. Check WRM trigger on PC1945. See section 8.11 O.K. No Check pulse trigger on J5/7 O.K. Check and fix wire connection between PC1942 & PC1945 No Check data pulses on U12/6 O.K Replace U12 (82510) No Check data pulses on U12/6 O.
8.11. WRM trigger checking Check WRM trigger on PC1945 O.K. No Check E1 (1-3) is shorted O.K. Fix No Check pulse trigger on J4/8 Replace WRM transmitter O.K. No Check pulse trigger on J5/7 O.K. Replace Q2 END 8.12. Check Tx Data to WRM on PC 1945 No Check and fix wire connection between PC1942 & PC1945 Check data pulses on J5/1 O.K. No Check data pulses on J8/2 Replace Q3 O.K.
8.13. Instrument does not measure the radiation System does not measure the radiation field Yes No Check cable between meter and detector Replace or fix cable O.K. No Replace detector O.K. No Check TTL pulses on U2/5 (PC1945) when the detector is in the radiation field Detector failure See section 8.14 O.K. Detector or cable failure No Check and fix wire connection between PC1942 & PC1945 Check 5V on U2/1 (PC1945) O.K. No Check TTL pulses on TP1 (PC1945) O.K.
8.14. Detector failure (PC 2003) Detector failure Yes No Check and fix the cable between meter & detector O.K. No Replace T1 Check (500÷550)V on R4/R5 O.K. O.K. Check positive pulses on ZP1201 G1 (Geiger pin) Check (500÷550)V on R4/R5 O.K. No No Replace U1 Replace Q3 & Q1 Check (500÷550)V on R4/R5 No Replace U3 Replace Card Replace Q2 or Q4 Check TTL pulses on U3/8 O.K. No O.K. Check TTL pulses on U3/1 O.K. No END Check 5V on C2 Check TTL pulses on J1/4 O.K.
8.15. Display Back Light doesn’t turn ON Display Back light doesn’t turn on Yes Press LIGHT pushbutton during 2 sec. O.K. No Check U9/7 or J3/6 while pressing Replace touch panel O.K. No Check 5V on U3/6 O.K. Replace CPU card No Check 8V ±1V on T1 pin input O.K. Replace Q1 & Q6 No Check 80V AC on T1 pin out = Replace T1 O.K. Replace electro Luminescence O.K.
9. Mechanical Instructions July 2007 9.1.
TelePole WR Part Numbers P/N RTM-9113 RTM-3010 RTM-3017 RTM-3013 RTM-3045 RTM-3022 RTM-3044 Part Name Complete TelePole WR Meter bracket & 4 screw Carrying strap 2 strap clip Pole assembly Complete pole assembly 4 Segment pole with fastening nuts Collar, aluminum (external) set of 3 Clutch, plastic (internal), set of 3 Rear lid (underneath grip) Grip Rear strap holder Heat shrinkable tube Front strap holder Pole to Detector adapter & 2 screw Telephone coiled cable 120 cm(internal) Meter assembly Complete
Detector assembly RTM-3049 Complete detector assembly 11 Detector board 2003 with 2 Geiger, rear flange (and 2 screws), damping sponge and mica cover 28 RTM-7000 Detector board 2003 without Geiger 32 RTM-4022 Geiger1201 29 RTM-4035 Geiger1301 30 RTM-3051 Detector sleeve/cover & 3 screws 9 RTM-3048 TelePole WR/ Operating & Maintenance Manual Page 45
9.2. Preparation for Use Note: See the telescopic pole construction scheme for reference. NOTE: The manufacturer recommends that the end user/owner to perform periodic inspections of the telescopic pole, collars, and clutches to ensure proper operational use and safety. 9.2.1. Check the condition of the segments, collars, and clutches (under collars) as follows: Hold the telescopic pole with both hands horizontally.
9.2.12. Pull segment (10) all the way out. 9.2.13. Tighten nut (8a) 9.2.14. Ensure that proper tension is on each collar in order for the segments to stay in one position when moving the instrument up and down and side to side with the segments completed extended. 9.2.15. Now collapse each segment back inwards in the reverse order.
9.3. Detector disassembly (14) 9.3.1. Loosen the three NC 4-40x3/8 Philips flat screws located at the bottom of the detector (14). 9.3.2. Gently pull the detector (14) about two cm out with one hand. Hold the detector cable with the other hand and continue drawing the detector tube out until the connector is visible. Press the connector's plastic clip to disconnect the cable from the detector. Hold the cable end with a clip to prevent it from entering back into the pole. 9.3.3. Figure 7-2.
Figure 7-3. Meter disassembly 9.4.2. Loosen the four NC 6-60 Philips screws fastening the meter holder (4) to the meter. 9.4.3. The meter and holder are now detached from the telescopic pole. See Figure 7-3. 9.5. Meter Holder Assembly (4) 9.5.1. Position the meter (5) on a flat and clean surface with the display facing down. 9.5.2. Position the telescopic pole on the meter rear cover. 9.5.3. Position the meter holder (4) on the meter (5) while the cable groove is facing the telephone socket side. 9.5.4.
9.9. Telescopic Pole Troubleshooting Table Symptom Probable Cause Segments are stuck and the Superficial damage, pole doesn’t extend crushed, (squeeze) segments and / or adjusting nuts. Cable is caught inside the segments. Sand or chips of dirt caught inside, between the segments. After extending out the Squeezing or bending of segments, they cannot be the segments and/or retrieved back. adjusting nuts. Fastening nuts are stuck. Cable is caught inside the pole. Cable damage.
Appendix 1 Upgrading TelePole Instruments from High Range and Low Range to Wide Range 1. WR Detector • Replacing the detector with a new wide range detector. • Pull gently the detector about two cm out with one hand. Hold the detector cable with the other hand and continue drawing the detector tube out until the connector is visible. Press the connector plastic clip to disconnect the cable from the detector. Hold the cable end with a clip to prevent its entering back into the detector tube. 2.
Appendix 2 Generic TelePole Calibration 1. It is possible to set/change all the factors outside the radiation chamber. 2. When the radiation field is lower than 10 mR/h, it is possible to change all the factors. 3. When in the calibration mode and the external radiation field is lower than 10 mR/h, pressing the MODE push-button can switch between the different factors. 4. Suggested procedure: 4.1 Turn the internal switch to the calibration position. 4.
4.7 Expose the TelePole to a radiation field of 600 R/h ±100 R/h. The meter will be automatically set to factor F5. Now the factor can be changed either by pressing the RESET or LIGHT push-button, or taking the meter outside the radiation chamber, the radiation field should be lower than 10 mR/h. Notice if the current displayed radiation factor is F5. If the factor is not F5 press the MODE push-button to switch to F5. Adjust F5 by pressing the RESET or LIGHT push-button.
Appendix 3 Rotem Meter View Software (RMV) Preface Rotem Meter View Software (RMV) is a WINDOWS 95 based program, aimed to download ROTEM's meters measurements to a PC. The meters are: RAM ION, TelePole and RAM DA-2000. Communication between the meter and the PC can be performed in two modes: On-Line - The meter downloads the measured data into the PC at intervals time set by the user. Off-Line - Data is stored in the meter (up to 347 strings) and then downloaded into the PC.
3. Select ‘Setting’ to set the Communication Port. 4. Select Get legend to fill the legend parameters. Data Download to PC Off Line 1. Store the ID location in the meter by a short press on the SPEAKER push-button. 2. Store the measurements and date in the meter by a short press on the LIGHT push-button. 3. Select ‘Data’ “Get offline data’ to download the meter's data. In the displayed table notice that: When an asterisk (*) appears on the Over Thr.
Bytes status description: 32 16 OFLO dose OFLO rate 8 Over thr. rate 4 Over thr. dose 2 1 Detector fail Low battery For example: Status = 1 - low battery Status = 8 - over threshold rate. Status = 9 - low battery and over threshold rate. On-Line 1. Select ‘Set Interval’ for WRM2 Radio. 2. Select Start, the meter downloads the data into the PC at intervals time set by the user. The Start icon is replaced by the Stop icon.
2. Select the Clear icon to clear the screen after saving the file. 3. To set the correct time and date to the TelePole select ‘Utility’ and then Send Time.
Appendix 4 TelePole WR - List of Electronic Drawings Available Upon Request DRW #12850-40-00 - Ver. 2.1 - CPU - DigiLog (sheet 1), PC #1942 DRW #12850-40-00 - Ver. 2.1 - CPU - DigiLog Display (sheet 2), PC #1942 DRW #12850-41-00 - Ver. 2.1 - CPU - DigiLog Extension Card, PC #1944 DRW #12850-42-00 - Ver. 4.0 - Power Supply, PC #1945 DRW #12852-40-00 - Ver. 2.0 - GM Detector, PC #2003 DRW #12852-50-00 - Ver. 2.0 - Wiring Diagram DRW #12850-45-00 - Ver. 2.
