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10-2
Chapter 10. SPECIFICATIONS
Item
Input 1
Max. allowable input
Burnout
Over-range detection
threshold
Cold junction compensa-
tion accuracy
Influence of ambient tem-
perature on cold junction
compensation
Cold junction compensa-
tion system
Scaling
Square root extraction
Linearization table approxi-
mation
Input bias
Digital filter
Input 2
Input type
Input readout accuracy
Input sampling cycle
Input bias current
Measuring current
Influence of wiring resis-
tance
RTD input allowable wiring
resistance
Allowable parallel resis-
tance
Max. allowable input
Burnout
Over-range detection
threshold
Cold junction compensa-
tion accuracy
Influence of ambient tem-
perature on cold junction
compensation
Cold junction compensa-
tion system
Specification
Thermocouple, dc voltage input:
-5 to +15 Vdc
dc current input:
50 mA dc, 2.5 Vdc
Upscale and downscale can be internally selected.
(dc current input and dc voltage input ranges of 1 V or more are only downscaled.)
110%FS min.: Upscaled
-10%FS max.: Downscaled (Note that F50 range is not downscaled. Lower readout
limit of B18 range is 20°C.)
±0.5°C (under standard conditions)
±0.2°C (in range 0 to 50°C)
Internal/external (0°C only) compensation selectable
-1999 to +9999U (settable by dc voltage and dc current. Reverse scaling and decimal
point repositioning possible)
Dropout 0.1 to 10.0%, Possible by dc current and voltage ranges
12 (both line ends fixed, 11 points variable)
-1000 to +1000U variable
0.0 to 120.0 seconds variable (filter OFF at 0.0)
Thermocouple, resistance temperature detector, dc voltage, multi-range
(See page 2-10.)
±0.2%FS±1U (varies according to standard conditions, display value conversion)
0.1 seconds
Thermocouple:
±2.0 µA max. (under standard conditions)
dc voltage input:
±5 µA max. (under standard conditions)
RTD input:
0.64 mA ±0.02 mA, current flow from terminal A (under operating
conditions)
Thermocouple, dc voltage input:
Changes in readout value at wiring resistance of 250
Ω
at both ends are as follows by input conversion:
• RTD:
Within 300 µV
• DC voltage: Within 750 µV
RTD input:
±0.01%FS/
Ω
max. in wiring resistance range 0 to 10
Ω
Range of F01 and P01: ±0.02%FS/
Ω
max.
• Allowable wiring resistance is 85
Ω
max. (including Zener barrier resistance. When
Zener barrier is used, this applies only to ranges other than F36 and P36. Note that
site adjustment is required.)
• Allowing wiring resistance is 10
Ω
max. (This applies to ranges F01 and P01. Note
that the Zener barrier cannot be used.)
Thermocouple disconnection detection allowable parallel resistance: 1 M
Ω
min.
Thermocouple:
-0.3 to +5 Vdc
dc voltage input:
-1 to +11 Vdc
Thermocouple, RTD:
Upscaled
dc voltage input:
Downscaled
110%FS min.:
Upscaled
-10%FS max.:
Downscaled
(Note that the range of L07 is downscaled at -1%FS or less.)
±0.7°C (under standard conditions)
±0.2°C (in range 0 to 50°C)
Internal/external (0°C only) compensation selectable