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Manufacturers of Process
Controls and Instrumentation
Function:
The ITC-79-FTF is a Frequency to Frequency Isolator
that is easily field configurable to one of many input
types such as several voltages or dry contact. Three
standard outputs are available (TTL, 24 VDC, and Dry
Contact) which can be used individually or
simultaneously.
Discrete ON and OFF threshold
adjustments allow for easy & accurate input signal
conditioning.
Adjustable response times allow for
appropriate signal filtering.
The ITC-79-FTF-BUF is similar to the -FTF but has a
microprocesser that can store incoming pulses in a
buffer and release them slowly to a slower counting
device.
The ITC-79-FTF-DIV is another variation of the -FTF
and has the capability to divide the incoming frequency
by any number between 1 and 65535.
Model: ITC-79-FTF
Frequency To Frequency Isolator
Standard Features:
DIN-Rail Mount (small size)
High Input-Output-Power Isolation (800VAC Test)
Wide Input Frequency Range (from 0 Hz to 10 KHz)
Many Input Types & Ranges (Voltage, Dry Contact)
3 Standard Outputs (TTL, 24V, Dry Contact)
Optional Buffer or Divider Function
Adjustable Response Time for Noise Rejection
Easy Field Calibration (Typ. calibration time < 2 min.
using handheld meter only)
Microprocessor Controlled for High Accuracy
24 VDC Supply for Dry Contact Input
Power: 24 VDC
CSA and NRTL Approval Pending
R
NRTL/C
Calibration:
The ITC-79-FTF has individual ON and OFF threshold
adjustment using multiturn potentiometers.
potentiometers have a test point where a voltage of -10
to +10 VDC indicates the threshold level as -100% to
+100%. This allows for easy field calibration with the
instrument running.
Specifications:
Isolation: Input to Output to Power 800 VAC (test)
Operating Temperature: -40 Deg.C. to +50 Deg.C.
Temperature Effects: +/-0.5% max., 0.2% typ.
Contact Rating: 0.4A @ 125VAC
(for 40 Deg.C. change)
2A @ 30VDC
All
Page B4
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