User Manual

ManualsBrandsNOSHOK ManualsHardware1900 Series Current Loop Powered Process Indicators

· DUAL RANGE, 4 to 20 mA OR 10 to 50 mA

· 3½-DIGIT, 0.6" (15.2 mm) HIGH DIGITS

· POSITIVE IMAGE TRANSFLECTIVE LCD WITH RED BACKLIGHT

OR POSITIVE IMAGE REFLECTIVE LCD (1900C-1/1900C-2)

· POSITIVE IMAGE TRANSFLECTIVE LCD WITH RED BACKLIGHT

OR NEGATIVE IMAGE TRANSMISSIVE WITH RED OR

YELLOW/GREEN BACKLIGHT (1900C-3/1900C-4)

· SPAN AND OFFSET CAPABILITY

· NEGATIVE AND OVERRANGE INDICATION

· SELECTABLE DECIMAL POINT POSITION

· NEMA 4X/IP65 SEALED FRONT PANEL BEZEL

· FITS DIN STANDARD CUT-OUT 2.68" (68 mm) X 1.30" (33 mm)

FOR USE IN HAZARDOUS LOCATIONS:

Class I, Division 2, Groups A, B, C, and D

Class II, Division 2, Groups F and G

Class III, Division 2

DESCRIPTION

The 1900C-1/1900C-2 and 1900C-3/1900C-4 are additions to the NOSHOK

1900 Series product line. The 1900C-1/1900C-2 uses a 4 to 20 mA or a

10 to 50 mA input signal as operating power. The input signal is also used

to power the backlighting on the 1900C.2 Unit. The 1900C.3/1900C.4 uses

to power the backlighting on the 1900C-2 Unit. The 1900C-3/1900C-4 uses

a 4 to 20 mA or a 10 to 50 mA input signal to power the unit. An external

power supply is used to power the 1900C-3/1900C-4 backlighting to provide

a brighter, more consistent display and a lower compliance voltage.

The units have a 3½-digit LCD display with 0.6" (15.2 mm) high digits and

a DIP switch selectable decimal point. The 1900C-1/1900C-2 display is

available in positive image reflective (dark digits, reflective background) or

positive image transflective (dark digits, illuminated background) with red

backlighting. The 1900C-3/1900C-4 display is available in pos

itive image

transflective (dark digits, illuminated background) with red or yellow/green

backlighting or negative image transmissive (illuminated digits, dark

background) with red or yellow/green backlighting.

The ability to scale the display allows indication in any desired unit of

measurement such as temperature, pressure, humidity, fluid flow, etc. The unit

is calibrated at the factory with 0.0 displayed @ 4 mA input and 100.0 displayed

@ 20 mA input.

The units are contained in a lightweight, high impact plastic case with a clear

viewing window. When properly installed, the sealed front panel meets NEMA

4X/IP65 specifications for wash-down and dusty environments.

SAFETY SUMMARY

All safety related regulations, local codes and instructions that appear in the

manual or on equipment must be observed to ensure personal safety and to

prevent damage to either the instrument or equipment connected to it. If

equipment is used in a manner not specified by the manufacturer, the protection

provided by the equipment may be impaired.

WARNING - EXPLOSION HAZARD - SUBSTITUTION

OF COMPONENTS MAY IMPAIR SUITABILITY FOR

CLASS I, DIVISION 2 / CLASS II, DIVISION 2 / CLASS III, DIVISION 2

SPECIFICATIONS

1. DISPLAY: 3½-digit (-1999 to 1999), 0.6" (15.2 mm) high digits.

The 1900C-1/1900C-2 is available with a positive image reflective LCD

or a red backlit positive image transflective LCD. The intensity of the

backlighting will vary with the input signal.

The 1900C-3/1900C-4 is available with a positive image transflective LCD

with red or yellow/green backlighting or a negative image transmissive with

red or yellow/green backlight.

A minus sign is displayed when the indicator is adjusted for a negative offset.

Overrange: Overrange is indicated by a “1” in the most significant digit and

the blanking of the three least significant digits.

2. EXTERNAL BACKLIGHT POWER: (1900C-3/1900C-4 only)

9 - 28 V dc, @35 mA typ., 50 mA max. Power Supplies must be Class 2

(NEC) or SELV rated. Above 26 V dc, derate the operating temperature to

50°C.

3. DECIMAL POINTS: Three DIP switch selectable, decimal point positions

allow the display to be read in tenths, hundredths or thousandths.

MODELS 1900C-1/1900C-2/1900C-3/1900C-4 - CURRENT LOOP POWERED PROCESS INDICATORS

DIMENSIONS “In inches (mm)”

Note: Recommended minimum clearance (behind the panel) for

mounting clip installation is 2.15" (54.6) H x 3.00" (76.2) W.

N OSH O K

1900

SER IES

TECHNI CAL MANUAL

1010 WEST BAGLEY ROAD

BEREA, OHIO 44017

E-MAIL: noshok@noshok.com

WEBSITE: www.noshok.com

FAX 440/243-3472

PHONE 440/243-0888

CURRENT LOOP POWERED PROCESS INDICATORS

Summary of content (4 pages)

PAGE 1
NOSHOK 1900 S E R I E S TECHNICAL MANUAL CURRENT LOOP POWERED PROCESS INDICATORS 1010 WEST BAGLEY ROAD BEREA, OHIO 44017 PHONE 440/243-0888 FAX 440/243-3472 E-MAIL: noshok@noshok.com WEBSITE: www.noshok.com MODELS 1900C-1/1900C-2/1900C-3/1900C-4 - CURRENT LOOP POWERED PROCESS INDICATORS · DUAL RANGE, 4 to 20 mA OR 10 to 50 mA · 3½-DIGIT, 0.6" (15.
PAGE 2
SPECIFICATIONS (Cont’d) ELECTROMAGNETIC COMPATIBILITY Immunity to EN 50082-2 Electrostatic discharge EN 61000-4-2 Level 2; 4 kV contact Level 3; 8 kV air Electromagnetic RF fields EN 61000-4-3 Level 3; 10 V/m1 80 MHz - 1 GHz Fast transients (burst) EN 61000-4-4 Level 4; 2 kV I/O Level 3; 2 kV power RF conducted interference EN 61000-4-6 Level 3; 10 V/rms2 150 kHz - 80 MHz Power frequency magnetic fields EN 61000-4-8 Level 4; 30 A/m 4. MAXIMUM VOLTAGE DROP: 3.2 V dc for 1900C-1 4.0 V dc for 1900C-2 3.
PAGE 3
EMC INSTALLATION GUIDELINES 3. Signal or control cables within an enclosure should be routed as far away as possible from contactors, control relays, transformers, and other noisy components. 4. In extremely high EMI environments, the use of external EMI suppression devices, such as ferrite suppression cores, is effective. Install them on Signal and Control cables as close to the unit as possible. Loop the cable through the core several times or use multiple cores on each cable for additional protection.
PAGE 4
DECIMAL POINT POSITION SELECTION The decimal point position is DIP switch selectable for one of three locations. The 1900C unit can be set up to read in 10ths, 100ths, or 1000ths. If all the DIP switches are set to the “OFF” position, no decimal point will appear on the display. The DIP switches are located at the rear of the unit. APPLICATION EXAMPLE Operation of a refinery process required a local display of the position of a remote pipeline valve.