ENMET QUADRANT - Manual (Page 18)

ENMET Corporation QUADRANT
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5.4 Sensor replacement
To change sensors and oxygen cell, turn instrument off and remove the enclosure cover
(6, 2MM hex screws) unplug the sensor or cell and replace with new sensor or cell.
Replace enclosure cover. Turn instrument on. Enter the cell change menu (see operation
flow chart on page 3). Select the channel with the sensor or cell that has been changed.
Allow to stabilize in clean air for 30 minutes. “0 setting” is displayed. Ensure you are in
a clean atmosphere and press the enter button. “YY:XX” is displayed, general and
associated LED’s are lit. When the general LED turns off press the enter button.
“S:XXX” is displayed press the enter button. “YY:XX” is displayed, general and
associated LEDs are lit. Apply calibration gas. When the instrument is completed with
its adjustment the general LED turns off, press the enter button.
YY is the position of the digital potentiometer and XX is the sensor reading.
5.5 Battery replacement
To replace the battery remove enclosure cover.(6, 2MM hex screws) and unplug the
battery pack. Plug in proper replacement battery and replace enclosure cover.
Use only the battery pack supplied by ENMET:
NiCad battery pack, part number 02601-006 for instruments s/n 16700 and below.
NiMH battery pack part number 02601-036 for instruments s/n 16822 and above.
C
AUTION : Battery Packs and Base Chargers are Not interchangeable.
The only alkaline batteries authorized to use in the housing, ENMET part number 02602-
012, are: Duracell MN1500LRG, Wonder LR6, Varta 4006, Panasonic LR6AM3.
W
ARNING
: Substitution of batteries or other components may compromise the intrinsic
safety of the instrument or damage the electronics of the QUADRANT.
5.6 Maintenance section password
The password can be changed form 1270 to any four digit number by mean of the
optional C0M 2000 software.
5.7 Adding A Sensor
An instrument may be purchased with fewer than four sensors, and a sensor added in the
field.
• Purchase the required sensor.
• Upon receipt of new sensor, turn the instrument off, remove the enclosure cover and
shorting clip from the new sensor pins.
• Insert the new sensor into the correct position in the circuit board.
N OTE : CO = TOXIC 1 and H2S = TOXIC 2
• Remove the protective gasket from the enclosure cover over the position of the new sensor.
• Replace the enclosure cover and turn the instrument on.
• Enter the program portion of the maintenance menu. (see the flow chart, Figure 3)
• Turn the channel associated with the new sensor on.
• Enter the cell change menu and select the correct channel.
• Proceed with the instructions given in section 5.4 above.