PS100, CH100 and BPE-ALK Power Supplies User Guide Issued 12.12.12 Copyright © 2001-2012 Campbell Scientific Ltd.
Guarantee This equipment is guaranteed against defects in materials and workmanship. This guarantee applies for twelve months from date of delivery. We will repair or replace products which prove to be defective during the guarantee period provided they are returned to us prepaid.
PLEASE READ FIRST About this manual Please note that this manual was originally produced by Campbell Scientific Inc. primarily for the North American market. Some spellings, weights and measures may reflect this origin. Some useful conversion factors: Area: 1 in2 (square inch) = 645 mm2 Length: 1 in. (inch) = 25.4 mm 1 ft (foot) = 304.8 mm 1 yard = 0.914 m 1 mile = 1.609 km Mass: 1 oz. (ounce) = 28.35 g 1 lb (pound weight) = 0.454 kg Pressure: 1 psi (lb/in2) = 68.95 mb Volume: 1 UK pint = 568.
Contents 1. Introduction ........................................................................ 1 2. BPE-ALK Alkaline Power Supply ...................................... 1 3. PS100 Lead-Acid Power Supply ....................................... 3 3.1 Description ......................................................................................................... 3 3.2 AC Adapters (Transformers) ............................................................................. 6 3.2.1 AC-ADAPT .............
PS100, CH100 & BPE-ALK Power Supplies Please refer to the relevant instruction manual for further information on the use of these power supplies with specific Campbell Scientific equipment. Details of our intelligent PS200/CH200 Charging Regulators are described in a separate manual. 1. Introduction The PS100 is a 12-volt power supply that includes a charging regulator and a 7 amp hour battery.
PS100, CH100 & BP-ALK Power Supplies Before installing the alkaline batteries, connect all necessary sensor leads, control lines and power leads. The datalogger can be turned off and on by disconnecting and reconnecting the in-line connector between the BPE-ALK and the datalogger. NOTE The battery connector and in-line connectors fitted to all power supply variants are 2-pole versions of the Molex Mini-Fit Jnr. series.
User Guide Table 1 Typical Alkaline Battery Service as a Function of Temperature Temperature (°C) 20 - 50 15 10 5 0 -10 -20 -30 NOTE % of 20°C Service 100 98 94 90 86 70 50 30 This data is based on one ‘D’ cell under conditions of 50mA current drain with a 30 ohm load. As the current drain decreases, the percent service improves for a given temperature. 3. PS100/CH100 Lead-Acid Power Supplies 3.1 Description The PS100 power supply includes a 12V, 7.
PS100, CH100 & BP-ALK Power Supplies The CH100 has an identical charging circuit to the PS100 but does not include an attached battery carrier or battery (see Figure 2). It is commonly used with the BP12, BP17 or BP24 battery packs or an external battery. The BP packs comprise a carrier to hold the supplied lead acid battery onto the chassis plate of an enclosure. The CH100 is generally mounted alongside the BP on the chassis plate.
User Guide The PS100 and CH100 specifications are given in Table 2, and the performance of the battery with temperature is given in Table 3. Table 2 Specifications Lead-Acid Battery fitted to the PS100 Battery Type: Float Life @ 25°C: Shelf Life, full charge: Yuasa NP7-12 5 years typical Check twice yearly Dimensions (H x W x D) PS100: CH100: 70 x 190 x 80 mm 102 x 70 x 39 mm Weight PS100: CH100: 3.
PS100, CH100 & BP-ALK Power Supplies Table 3 Typical Battery Capacity for Lead-acid Batteries as a Function of Temperature Temperature (°C) % of 20°C capacity NP7-12 40 110 7.7 20 100 7 0 84 5.9 -20 72 5.0 N.B. these figures only apply to low discharge rates. CAUTION Capacity (Ah) NP12-12 13.2 12 10.0 8.6 NP17-12 18.7 17 14.2 12.2 NP24-12 26.4 24 20.2 17.
User Guide AC-ADAPT2, simply strip an appropriate length of the cable sheath, and secure the wire under the screw terminals. 3.2.3 Installation of the Adapter All low voltage power cables should have two cores at least 22SWG (0.71mm) thick. You may find that standard AC power cable is suitable. The cable run from the AC adapter to the charger module can be extended for several hundred metres if necessary, but if high current demands are anticipated, use thicker cable to prevent significant voltage drop.
PS100, CH100 & BP-ALK Power Supplies To Battery From Transformer or Solar Panel To Datalogger or Peripherals Figure 3. Wiring to Charger BATT INT EXT CHG Regulator IN 3A Thermal Fuse ON OUT OFF Charging CHG CHG +12 +12 Figure 4.
User Guide 3.4 Charging The 12 volt and ground terminals on the power supplies are for supplying power to the datalogger or other 12 volt devices. A lead is supplied fitted with an in-line connector to connect to such a device. The in-line connector is the method of turning off power to the datalogger. The two terminals labelled ‘CHARGE’ are for connecting an AC adapter or solar panel to charge the lead-acid batteries.
PS100, CH100 & BP-ALK Power Supplies NOTE The datalogger measures the voltage at its 12V port, not the voltage of the lead-acid battery. External power sources must therefore be disconnected from the charging circuit in order to measure the actual lead-acid battery voltage. 3.5 Use of Backup Battery The charger/regulator is fitted with two connectors labelled ‘BATTERY’. One of these sockets is normally used for connection of the internal battery.
User Guide Figure 5. Null Modem Connections CAUTION This cannot be used as a null modem between two RS232 devices. 5. A105 12V Terminal Expansion Adapter The A105 adapter adds four 12-V terminals and four ground terminals to a CH100 or PS100 (see Figure 6). The extra terminals make it easier to wire multiple continuously powered 12-Vdc devices to the power supply. Figure 6.
PS100, CH100 & BP-ALK Power Supplies 6. Solar Panels Auxiliary photovoltaic power sources such as the SP5, SP10 and SP20 Solar Panels may be used to maintain the charge on lead-acid batteries. Table 4 Solar Panel Specifications Typical Peak Power (Watts) Current @ Peak (Amps) Amp Hrs/week NOTE SP5 4.5 0.27 6.4 SP10 10 0.58 14.4 SP20 20 1.17 26.4 These specifications assume 1kW/m2 illumination at a panel cell temperature of 25°C. Individual panel performance may vary as much as 10%.
CAMPBELL SCIENTIFIC COMPANIES Campbell Scientific, Inc. (CSI) 815 West 1800 North Logan, Utah 84321 UNITED STATES www.campbellsci.com • info@campbellsci.com Campbell Scientific Africa Pty. Ltd. (CSAf) PO Box 2450 Somerset West 7129 SOUTH AFRICA www.csafrica.co.za • sales@csafrica.co.za Campbell Scientific Australia Pty. Ltd. (CSA) PO Box 444 Thuringowa Central QLD 4812 AUSTRALIA www.campbellsci.com.au • info@campbellsci.com.au Campbell Scientific do Brazil Ltda.
