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pH Simulator 112
4.
Preparation
5.
Operation
6.
Maintenance
screen
pin
7.
Product specification
Designation:
Order No.:
Output voltages:
Voltage tolerance:
Ambient conditions:
Internal resistance:
Housing:
Designation:
Order No.:
Designation:
Order No.:
© 12/2018 Mettler-Toledo GmbH, CH-8606 Greifensee
Printed in Switzerland
Connect the pH simulator to the pH transmitter with the AS7 or AS9 connect -
ing cable or, using the adapter provided with the AK9 connecting cable.
Follow trouble-shooting diagrams I, II and III in order to verify the calibration
of the pH transmitter.
The battery function can be tested in position Low/pH 4/20 by connecting pin
(glass, pH) and screen or the potential equalization jack (reference) to a mV
meter.
If the output voltage is less than 174.3 mV, the pH simulaor must be return -
ed to the point of sale for a battery change.
pH Simulator 112
31 112 3003
at pH 4 and 20 °C: +174.5 mV
at pH 4 and 50 °C: +192.3 mV
at pH 7 and 20 °C:
0.0 mV
at pH 9 and 20 °C: –116.3 mV
±0.2 mV (equivalent to ±0.004 pH)
in a temperature range of 0 to 50 °C
– for indoor use only
– max. relative humidity 80 %
– temperature range 5...40 °C
R
Low <30 kΩ
m
R
High = 10
9
Ω ±10%
m
Aluminum, black anodized
Dimensions: Length= 115 mm
Diameter= 45 mm
Weight= 320 g (incl. adapter)
AS7/K7 adapter
00 201 1087
Potential equalization cable
31 112 3002
5
pH-Sim 112-02-CH
59 905 998 C
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