FloBoss 407 Instruction Manual
Rev 5/00 3-41
Differential Module Specifications
FIELD WIRING
TERMINALS
INPUT
A:
Not used.
B:
Positive Analog Input (+)
C:
Negative Analog Input (-)
Type:
Voltage sense. Externally-
powered current loop sensing with
scaling resistor (R1).
Voltage:
0 to 5 Volts dc, software
configured.
Accuracy:
0.1% of full scale (20
to 30 °C). 0.5% of full scale (-40 to
70 °C).
INPUT
(CONTINUED)
POWER
REQUIRE-
MENTS
INPUT
ISOLATION
Normal Mode Rejection:
50 dB @
60 Hz.
Impedance:
Greater than 400K
ohms (without scaling resistor).
4.9 to 5.1 Volts dc, 6 mA maximum;
-4.5 to -5.5 Volts dc, 2 mA maximum
(supplied by ROC).
Greater than 400K ohms input to
power supply common.
Common Specifications
SCALING
RESISTOR
SURGE
WITHSTAND
RESOLUTION
FILTER
CONVERSION
TIME
VIBRATION
WEIGHT
250 ohm (supplied) for 0 to 20 mA
full scale. 100 ohm for 0 to 50 mA
(externally-powered only).
Meets IEEE 472/ANSI C37.90a.
12 bits.
Single pole, low-pass, 40 milli-
second time constant.
30 microseconds typical.
20 Gs peak or 0.06 in. double
amplitude, 10 to 2,000 Hz, per
MIL-STD-202 method 204
condition F.
1.3 ounces (37 grams).
MECHANICAL
SHOCK
CASE
ENVIRON-
MENTAL
APPROVALS
1500 Gs 0.5 mS half sine per MIL-
STD-202 method 213, condition F.
Solvent-resistant thermoplastic
polyester, meets UL94V-0. Dimen-
sions are 0.60 in. D by 1.265 in. H by
1.69 in. W (15 mm by 32 mm by 43
mm), not including pins.
Meets the Environmental specifi-
cations of the ROC or FloBoss in
which the module is installed,
including Temperature and Transient
Protection specifications.
Approved by CSA for hazardous
locations Class I, Division 2, Groups
A, B, C, and D.
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