LEYBOLD LEYSPEC view Series User Manual

300781172_002_C0 - 012/2019 - © Leybold 36
External inputs and outputs (I/O)
Fig. 8.2 Interlock signal circuit
8.3 Analogue input
Used when loading the pressure on the pressure gauge or temperature from
outside.
Input a voltage of 0 to 10 V to the analogue input terminal (pins 1 and 2) and A-GND
(pins 9 and 10).
The analogue input specifications are as follows.
CAUTION:
Observe operating conditions. The product could be damaged if a voltage of 10 V
or more is applied.
Insulation : Not insulated
Input range : 0 to 10 V
Input impedance : 50 kΩ
Input form : Differential
Resolution : 0.01 V
NOTICE:
To connect more than one recorder or device in parallel on the RGA's analogue
input, use a resistor (input impedance) of about 100 k? in series with the RGA
analogue input line (terminal numbers: 1 and 2). Analogue input impedance of the
RGA is about 50k? when power is on. When the power supply is switched to OFF,
the input impedance is undefined (several ?) because power is not supplied to the
input operational amplifier. If another recorder is connected in parallel with the
RGA's analogue input, the input voltage to that recorder may fluctuate due to this
undefined impedance.

LEYBOLD LEYSPEC view Series Specifications

General

Brand	LEYBOLD
Model	LEYSPEC view Series
Category	Measuring Instruments
Language	English