User manual EUTECH INSTRUMENTS ALPHA PH 500 PHORP 2-WIRE TRANSMITTER (REVISION 2)

[. . . ] Instruction Manual pH 500 LCD Transmitter pH/ORP Transmitter with Display 68X216829 Rev 2 05/04 Technology Made Easy . . . Preface This manual serves to explain the use of the pH 500 transmitter. It functions in two ways, firstly as a step by step guide to help you to operate the transmitter. Secondly, it serves as a handy reference guide. It is written to cover as many anticipated applications of the transmitter as possible. [. . . ] Upper display shows amount of offset, in terms of pH; lower display shows current measured pH value. Use or keys to introduce offset to pH readings. Allow time for temperature probe to acclimatize with surrounding bath temperature. If temperature readings are inaccurate, calibrate temperature probe as described in steps 4 and 5. Use or keys to adjust correct temperature value (i. e. Readings can be adjusted in increments of 0. 1 °C. Maximum adjustments allowed is ± 5 oC. Once you have adjusted the correct temperature, press ENT key. Press and keys together, to return to MEAS mode. If temperature readings are correct, press ENT key and go to step 6. 6. The ATC indicator will light up on the LCD. NOTE: If you are using a temperature probe, the probe must be submersed in the liquid you are measuring. 6. 3. 2 1. Manual Temperature Compensation Make sure the transmitter is on. Press ENT key and use or keys to o select `SET C'. - 14 - Instruction Manual pH 500 2. Primary display shows `ATC' and secondary display shows `On' or `OFF'. Primary display shows temperature (default is 25. 0), and secondary display shows `P °C''. This is the set up page for setting the temperature of your transmitter to the temperature of your process or sample by using an accurate thermometer as reference. Use or keys to set the transmitter to the temperature of your process or sample. Primary display shows temperature (default is 25. 0), and secondary display shows `C °C'. This is the set up page to input to your transmitter the temperature of your calibration solutions. Use or keys to set the transmitter to the temperature of your calibration solutions. Press and keys together, to return to MEAS mode. 4. 7. The transmitter will now compensate pH readings for the manually set temperature (values taken from P °C'). - 15 - Instruction Manual pH 500 SETUP HOLD SETUP HOLD SETUP HOLD SETUP HOLD SETUP . . HOLD °C ATC . SETUP HOLD . Temperature Compensation Setting Chart ­ alpha pH 500 Transmitter - 16 - Instruction Manual pH 500 6. 4 HOLD Current Setting SETUP HOLD When Transmitter is in CAL or SETUP modes, it automatically goes into a `HOLD' mode. To indicate Transmitter is in `HOLD' mode, output current can be set to 22 mA output by activating the `HLD On'. [. . . ] 600 96 x 96 x 66 mm / 210 g SPECIFICATIONS pH Range Temperature Range Resolution / Accuracy Millivolt Range Resolution / Accuracy Temperature Compensation Number of calibration points Number of calibration buffers Inputs Output Over- / Under range current output `ON' Select `OFF' Select HOLD current output `ON' Select `OFF' Select Display Power Requirements Load Resistance Dimension / Weight - 23 - Instruction Manual pH 500 10 TECHNICAL DIMENSIONS - 24 - Instruction Manual pH 500 11 ACCESSORIES EUTECH INSTRUMENTS Replacement Transmitter and Transmitter accessories Ordering Code No. EC-PHCTP0500 EC-ARTSO-05B EC-ARGTSO-05B EC-100GTSO-05B EC-DA93506-05B EC-HTAUTSO-05B EC-HTPTTSO-05B Item Alpha pH/ORP 2-wire LCD Transmitter Combination pH electrode with 5m cable Combination pH electrode with PMP and 5m cable Combination pH electrode with PT 100, PMP and 5m cable Combination pH electrode, submersible, with 5m cable Combination Gold ORP electrode with PMP and 5m cable Combination Platinum ORP electrode with PMP and 5m cable Calibration Solutions Ordering Code No. EC-BU-4BT EC-BU-7BT EC-BU-10BT EC-BU-4BS EC-BU-7BS EC-BU-10BS EC-RIN-WT EC-AST-PK EC-DPC-BT EC-RE-005 Item pH 4. 01 buffer solution, 480 ml bottle pH 7. 00 buffer solution, 480 ml bottle pH 10. 01 buffer solution, 480 ml bottle pH 4. 01 buffer sachets, 20 ml x 20 pcs. pH 10. 01 buffer sachets, 20 ml x 20 pcs. [. . . ]