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2.13 Pressure Measurement
A remote pressure transducer may be connected to the S4000
allows on-line measurement and display of the sample gas pressure, as well as
calculation of pressure compensated PPM(V), PPM(W), g/m
If a pressure transducer is not connected to the instrument, a default pressure of 101.3
kPa (atmospheric pressure) is assumed, and all pressure dependent parameters are
calculated using this pressure.
The pressure is displayed in kPa, and is available as a digital output on the RS232
interface. Refer to Section 4.5.2.
The standard pressure range is 0 to 50 psi absolute, but special pressure ranges may be
supplied to order. Contact Kahn Instruments Technical Sales Department for further
information.
Remote Pressure Connection
A 6 pin circular socket (type Hirose RM12B Series bayonet) on the monitor unit rear
panel marked REMOTE PRESSURE provides the supply voltage (+15VDC) and signal
input voltage (1-6VDC) scaled over the range of 0-50 psia required for the pressure
measurement circuit.
Pin connections are as follows:
KAHN INSTRUMENTS, INC.
Pin Number
Function
1
N/C
2
N/C
3
N/C
4
Signal Input
5
0 VDC
6
+15 VDC
Integrale
3
, and g/kg.
885 Wells Road, Wethersfield, CT 06109
Tel: 860-529-8643; Fax: 860-529-1895
E-mail: info@kahn.com
Page 15
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