Start-Up; Test Equipment; Set-Up; Test Wiring - Emerson Rosemount 1181pH TRANSMITTER Instruction Manual

MODEL 1181pH/ORP
3.8 START-UP. The LCD (option 04) is factory set for
00.00 to 14.00 pH, therefore no further adjustment
should be necessary. The standard procedures in this
instruction manual should be followed for proper instru-
ment start-up and calibration (see the start-up and cal-
ibration section of the instruction manual).
If an operational test and adjustment of the LCD mod-
ule is required, the following procedure should be fol-
lowed. The object of this procedure is to test and cali-
brate the 1181 LCD, RTI (refer to input) display unit in
conjunction with the complete 1181 pH instrument.
* Not available with integral preamp options.
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3.9 TEST EQUIPMENT

1. DC power supply cable of 30V at 50mA. Hewlett
Packard 6216A or equivalent Model 515.
2. Two digital voltmeters to measure ±2.5V and 4-20
mA (Fluke 8050A or equivalent)
3. Model 213 pH Simulator
4. 1181 pH pre-amp (part number 22698-02)
3.10 SET UP. The 1181 pH, with LCD (liquid crystal dis-
play) RTI (refer to input) installed, is connected with a
pre-amp as per Figure 3-5 (1181 set to 14 pH span).
1. Connect voltmeter M2, minus lead, to TB2-2 (red
wire) and the plus lead to TB2-1 (black wire).
2. Connect voltmeter M1 across a 600 ohm resistor
as shown in Figure 3-5.
FIGURE 3-5. Test Wiring
SECTION 3.0
START UP, AND CALIBRATION