Appendix J Calibrating With Multiple Canisters - Honeywell MicroMAX Pro User & Maintenance Manual

MAN-MAXPRO
REV. B.0.
APPENDIX J - CALIBRATING WITH MULTIPLE CANISTERS

APPENDIX J CALIBRATING WITH MULTIPLE CANISTERS

Whether the calibration procedure falls under Section 5.2
Calibration Procedure (when all calibration gases are in a
single canister) or under Section 5.3 Calibration Procedure
(when not all calibration gases are in a single canister) is
dependent on the instrument's sensor complement. If the
sensor complement is O2, LEL, CO and H2S, all four
calibration gases are available in one canister (GFV207 or
GFV243). Similarly, if the sensor complement is O2, LEL, CO
and SO2, all four calibration gases are available in one
canister (GFV279). Again, if the sensor complement is O2,
LEL, and CO then all three-calibration gases are available in
one canister (GFV123). GFV123 would also be used where
the sensor complement is O2 and LEL.
Where not all the calibration gases are available in a single
canister, the position is as follows:
(1)
(2)
First, apply GFV123 (O2, LEL and CO), followed by the
gas(es) appropriate to the other toxic sensor(s).
(3)
Five-gas models with combo-tox sensor
First, apply GFV123 (O2, LEL and CO). Then apply the
gas appropriate to the other toxic sensor in the unit. Do
not calibrate the combo-tox sensor with H2S gas.
Four-gas models with O2, LEL and CO sensors
First, apply GFV123 (O2, LEL and CO), followed by the
gas appropriate to the other toxic sensor.
Models with O2 and/or LEL sensors
Examples
a. MPRO-4ABCE (O2, LEL, CO and NH3). Follow the
procedure in Section 5.3 Calibration Procedure
(when not all calibration gases are in a single
canister). The first calibration gas is GFV123; the
second calibration gas is either GFV 213 (58 Liters)
or GFV 250 (34 Liters).
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