Despatch PROTOCOL 3 User Manual

E105, 313327, REV A Protocol 3
TM
User Guide
10 of 82
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2. SPECIFICATIONS
2.1. Process Input
Table 1. Process Input.
Item
Description
Sampling Rate:
4 per second
Resolution:
16 bits. Always four times better than display resolution.
Impedance:
>10MΩresistive, except DC mA (5Ω) and V (47kΩ)
Temp Stability:
Error <0.01% of span per °C change in ambient temperature
Supply Variation:
Supply voltage influence negligible within supply limits
Humidity Influence:
Negligible if non‐condensing
Process Display:
Displays up to 5% over and 5% under span limits
Process Variable
Input Offset:
Reading adjustable ± Controller Span. Values added to Process
Variable, Values subtracted from Process Variable.
Sensor Break
Detection:
• Thermocouple & RTD—SSR output goes to 0
• High Limit Sensor Break alarms activate
• Linear (4 to 20mA, 2 to 10V and 1 to 5V only)—SSR output
goes to 0
Isolation:
Isolated from all outputs (except SSR driver) at 240V AC
Supported
Thermocouple Types
& Ranges:
Type
Range °C
Range °F
B
+100 to 1824°C
+211 to 3315°F
C
0 to 2320°C
32 to 4208°F
D
0 to 2315°C
32 to 4199°F
E
-240 to 1000°C
‐400 to 1832°F
J
-200 to 1200°C
-328 to 2192°F *
K
‐200 to 1200°C
‐328 to 2192°F *
L
0 to 762°C
32 to 1402°F *
N
0 to 1399°C
32 to 2551°F *
PtRh
0 to 1850°C
32 to 3362°F

Despatch PROTOCOL 3 Specifications

General

Brand	Despatch
Model	PROTOCOL 3
Category	Controller
Language	English