Orp Probe Programming; Orp Probe Calibration; Orp Preamplifier/Junction Box Calibration - Hach 900 MAX Instrument Manual

Pin
A
B
C
D
E
F

5.3.2 ORP Probe Programming

5.3.3 ORP Probe Calibration

5.3.3.1 ORP Preamplifier/Junction Box Calibration

8990options.fm
Table 9 ORP Connector Pin Assignments (J3)
Signal Description
+5 V dc
ground
reference
pH/ORP
5 V dc
RTD
The ORP probe consists of three wires; a pink, black, and red wire. There is
no temperature sensor on the ORP probe.
1. Attach the clear wire to either screw on the terminal strip labeled GLASS.
2. Attach the black wire to the REF screw on the other terminal strip.
3. Attach the red wire to the GND screw on the terminal strip.
1. From the Main Menu, select
2. Highlight Select Inputs using the
3. Highlight ORP using the
4. Press
CHANGE CHOICE
press to continue.
ACCEPT
5. Enter a logging interval, then press
shown on the status bar along the bottom edge of the display.
6. Select another channel to configure or press
step. Press
MAIN MENU
Calibration of the ORP input circuit requires a source of dc voltage between
500 and 2000 m V dc. The reference voltage must be applied to the ORP
input terminals on the preamplifier/junction box during calibration. A regulated
dc power supply or a standard "C" cell battery (1500 mV dc) make excellent
sources for reference voltage.
1. From the Main Menu, select
CALIBRATION > ORP.
2. Install the ORP junction box on the sampler with the ORP probe removed.
3. Apply a positive reference voltage to the ORP probe terminals in the
junction box, using either a 1.5 V dc "C" cell battery or a regulated
power supply.
Wire Color
OPTIONS>ADVANCED OPTIONS>DATALOG.
and keys and press
UP DOWN
and keys, then press
UP DOWN
to cycle between Logged and Not Logged, then
. Valid logging intervals are
ACCEPT
RETURN
to return to the Main Menu.
OPTIONS > ADVANCED OPTIONS >
Section 5
White
Blue
Yellow
Black
Red
Green
.
SELECT
.
SELECT
to back up one
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ORP Probe