Gill Instruments Ltd
Analogue Output Connector
25 way D type plug
Pin
Designation
Pin
Designation
1
Analogue ground 1
14
Analogue output 1
2
Analogue ground 2
15
Analogue output 2
3
Analogue ground 3
16
Analogue output 3
4
Analogue ground 4
17
Analogue output 4
5
Analogue ground 5
18
Analogue output 5
6
Analogue ground 6
19
Analogue output 6
7
Analogue ground 7
20
Analogue output 7
8
Analogue ground 8
21
Analogue output 8
9 Test
pin
1
22
Test
pin
2
10
Signal
ground
23
Earth
11
Earth
24
Status
output
12
Signal
ground
25
Sync
output
13 Signal
ground
13.3 PCI Specification
Electrical power requirements
(a)
100Vac - 120Vac, 10VA for the 115V switch position
(b)
200Vac - 250Vac, 10VA for the 230V switch position
(c)
9 - 30Vdc, 400mA max (anemometer)
8 - 15Vdc, 50mA max (PCI)
8 - 15Vdc, 90mA max (PCI with analogue outputs)
Environmental
The desk top PCI is not sealed and is intended for use in a protected environment.
Analogue Outputs
The analogue outputs have the following specification:
Full scale range:
-2.5v to +2.5v
Accuracy:
0.25% of full scale (9 bits)
Resolution:
14 bits over ±3.0v
Settling time:
2ms to 0.25% accuracy (note that the minimum time between
samples
is
10ms)
Output resistance:
<0.5
Ω
at frequencies below 50Hz, short circuit proof
Load resistance:
Greater than 10k
Ω
Load capacitance:
Between 0 and 1000pF (e.g. up to 10m of coaxial cable)
Analogue Sync and Status Outputs
Both Sync and status outputs conform to the following electrical specification:
Output Voltages:
high +3V to +5V
(referred to signal ground)
low <1V
Output
resistance:
<100
Ω
, short circuit proof
Load resistance:
Greater than 10k
Ω
Load capacitance:
Between 0 and 1000pF (e.g. 10m of coax)
HS-50 Research Anemometer
Page 48
Issue 02
Doc. No. 1199-PS-0032
November 2004
Summary of Contents for HS-50
Page 2: ......
