Chromalox 1604-7 Weather Radio User Manual


 
28
STANDARD RANGES TABLE
B) RTD (Resistance Temperature Detector)
Input: for RTD Pt 100 W, 3-wire connection.
Input circuit: current injection.
°C/°F selection: via front pushbuttons or serial link.
Line resistance: automatic compensation up to
20 W/wire with no measurable error.
Calibration: according to DIN 43760
Burnout: up scale. NOTE: a special test is
provided to signal OVERRANGE when input
resistance is less than 15 W.
STANDARD RANGES TABLE
C) LINEAR INPUTS
Read-out: keyboard programmable between
-1999 and +4000.
Decimal point: programmable in any position.
Burn out: the instrument shows the burn out condi-
tion as an underrange condition for 4-20 mA, 1-5 V
and 2-10 V input types.
It shows the burn out condition as an underrange or
an overrange condition (selectable by soldering
jumper) for 0-60 mV and 12-60 mV input types. No
indication are available for 0-20 mA, 0-5 V and 0-10
V input types.
D) LOGIC INPUT
The instrument is equipped with one input from
contact (voltage free) for setpoint selection.
Contact open = Main setpoint.
Contact closed = Auxiliary setpoint.
NOTES
1) Use an external contact with a contact rating
better than 0.5 mA, 5 V DC.
2) The instrument needs 100 ms to recognize a
contact status variation.
3) The logic inputs are NOT isolated by the
measuring input.
Input
type
RTD Pt 100 W
DIN 43760
Ranges
10
11
27
28
T/C
type
L
L
J
J
K
K
T
N
R
S
Ranges
0
1
2
3
4
5
6
7
8
9
0 /+ 400.0°C
0 /+ 900 °C
-100.0/ + 400.0°C
-100 / + 1000 °C
-100.0/ + 400.0°C
-100 /+ 1370 °C
-199.9/ + 400.0°C
-100 /+ 1400 °C
0 /+ 1760 °C
0 /+ 1760 °C
20
21
22
23
24
25
26
---
0 / + 1650 °F
---
-150 / + 1830 °F
---
-150 / + 2500 °F
-330 / + 750 °F
-150 / + 2550 °F
0 / + 3200 °F
0 / + 3200 °F
- 199,9 / + 400,0 °C
- 200 / + 800 °C
-199,9 / +400,0 °F
-330 / + 1470 °F
Input type
12
13
14
15
16
17
18
19
0 - 60 mV
12 - 60 mV
0 - 20 mA
4 - 20 mA
0 - 5 V
1 - 5 V
0 - 10 V
2 - 10 V
impedance
> 1 MW
< 5 W
> 200 kW
> 400 kW
Accuracy
0.2 % + 1 digit
@ 25°C
1604-7-1-AB.p65 5/16/00, 10:50 AM28