Fits Lynx Leopard & Tiger 320 Series
Input
Connected to Isolated
Current Transformer.
High Precision 1 or 5 Amp Shunt Resistor.
Improved linearity.
Span Potentiometer.
Provides precise full scale adjustment.
Span Adjust Header.
Provides fine full scale range adjustment.
Span Range Header.
Provides Coarse
range adjustment.
State-of-the-Art
Electromagnetic Noise Suppression.
Circuitry ensures signal integrity even in harsh EMC environments.
Active Bandpass Filter.
0.2 Hz to 10 kHz bandwidth.
Texmate Patented
RMS-to-DC Converter.
High accuracy, extremely linear.
Interface to
Lynx, Leopard and Tiger Families
At last, the answer to precise and repeatable RMS current measurements for the AC power industry.
This revolutionary module utilizes the Texmate designed RMS-to-DC convertor circuit block. This circuit block provides true RMS measurements over a wide range of isolated input currents while maintaining excellent linearity up to a 10 kHz waveform frequency.
Input Module
Order Code Suffix
IA09 (1 Amp)
IA11 (5 Amp)
Current Range (Isolated)
Frequency Range
Resolution
Accuracy
Lynx
Leopard
Tiger
Output Signal
Forced Zero
Meter Interface
Span Drift
Hardware Module Specifications
IA09: 0-1 A AC, IA11: 0-5 A AC. 0.02 % linearity on both.
0.2 Hz to 10 KHz (3 dB).
1 mA over full scale input.
0.03 % of full scale input 2 digit.
0.05 % of full scale input 2 digit.
0.02 % of full scale input 1 digit.
Adjustable to 2 V full scale using on-board trimmer and header selections.
Forces output to 0000 if below 1 % of full scale.
Can be utilized in the Lynx, Leopard, and Tiger range of indicators, meter relays, and controllers. 500 ppm /C of full scale maximum.
Some Relevant Operating System Features
Direct display of true RMS current.
Setpoint control (Tiger & Leopard).
Full scale calibration accurate for any sized signal.
IA09-11 Data Sheet (NZ339)
Texmate, Inc. Tel. (760) 598-9899 www.texmate.com
Page 1
Note:
The IA09 and IA11 input module has been designed for use with an isolating current transformer (CT).
IA11 wired to monitor RMS amps usage on a resistive load connected to a single phase mains supply
Figure 1 IA09/IA11 Input Module Component La yout
The AC amps true RMS input module is a universal module designed to function with the Lynx, Leopard, and Tiger r ange of indicators, meter rela ys, and prog rammable meter controllers (PMCs).
IA09 has a 1 amp high-precision shunt resistor installed f or an isolated current r ange of 0 to 1 amp, while IA11 has a 5 amp high-precision shunt resistor installed for an isolated current range of 0 to 5 amps. A span potentiometer, span adjust header, and a span r ange header are used to adjust the input signal full scale. A zero input current produces a 0 V output signal, meaning no zero adjustment is necessar y.
Tiger Controllers and Leopard Meter Relays The Tiger and Leopard range use internal software functions to calibrate the span. However, it may be necessar y to adjust the span potentiometer to br ing the maxim um input signal within the full scale range of the instrument.
When the input signal is be yond the full scale range of a Tiger controller, the display flashes [OVER].
When the input signal is be yond the full scale r ange of a Leopard meter, the top segment of each digit of the display flashes.
Figure 2 Span Potentiometer Adjustment
With the span range header set to HI and the span adjust header set to 100%, turn the 15 turn span potentiometer counter-clockwise to decrease the signal until a reading appears on the display (See Figure 2). Now calibrate the instrument using the software calibration method for your instrument.
Lynx Indicators
Calibration settings on all L ynx indicators are carr ied out using the b uilt-in headers and span potentiometer. The 15 turn span potentiometer has an approximate span adjustment of 20% of the full scale signal. Together, the span range header and the span adjust header e xpand the range of the span potentiometer into 10 equal adjustab le portions, each por tion being 10% of the full scale range.
When the input signal is be yond the full scale r ange of a Lynx indicator, a 1 is displayed in the most significant digit with all other digits b lank.
Page 2
Texmate, Inc. Tel. (760) 598-9899 www.texmate.com
IA09-11 Data Sheet (NZ339)
Span Potentiometer (Pot)
The 15 tur n span potentiometer is located on the r side of the input module (when vie wed from the rear of the meter). Typical adjustment is 20% of the input signal r (See Figure 3).
ight-hand
ange
Figure 3 Span Pot
Span Adjust Header
This unique fiv e-position header e xpands the adjustment r ange of the span potentiometer into fiv e equal 20% sectors, across 100% of the input signal span. Any input signal span can then be precisely scaled do wn to provide any required display span from full scale to the smallest viewable unit (See Figures 4 and 5).
Figure 4 Span Adjust Header
Figure 5 Span Adjust Header Operation
Span Range Header
The span r ange header w orks together with the span adjust header b y splitting its adjustment r ange into a high and a low range. This has the eff ect of dividing the adjustment r ange of the span potentiometer into ten equal 10% sectors across 100% of the input signal span (See Figures 6 and 7).
Figure 6 Span Rang e Header
Figure 7 Span Rang e Header Operation
IA09-11 Data Sheet (NZ339)
Texmate, Inc. Tel. (760) 598-9899 www.texmate.com
Page 3
Lynx Indicator Calibration Setup To successfully calibrate a Lynx indicator over the input signal span with an IA09 or IA11 input module installed, the headers must be correctly set and the span pot adjusted to the final displa y setting.
Example
With an IA11 input module installed in a DX-35 L ynx indicator, we want to show a digital representation of a 5 A input signal o n the display. As the DX-35 has a maximum of 1999 counts, 5 A could easily be shown to two decimal places by setting the span setting to
500 counts.
To configure the input module to sho w 500 counts for an isolated input signal of 5 A, proceed as f ollows:
1) The first adjustment to mak e is the coarse r ange setting. Set the span range header to the LO W position (See Figure 8).
This effectively halves the maximum counts of the DX-35 from 1999 to
1000 (+ or 20% of 1999.This could be as much as 400 counts).
2) The next adjustment is the fine r ange setting. Set the span adjust header to the 40% position (See Figure 9).
This position should lea ve you with a display setting lower than 500 counts.
By how much, depends on the position of the span pot.
3) The final adjustment can no w be made
using the span pot (See Figure 10).
As the display reading is below the required setting of 500 counts, tur n the span pot clockwise to increase the counts until the display shows a reading of 500 counts.
Figure 8 Span Rang e Header
Adjustment
Figure 9 Span Adjust Header
Figure 10 Span Pot Adjustment
Adjustment
Tel: 1-760-598-9899 USA 1-800-839-6283 Thats 1-800-TEXMATE
Page 4
Texmate, Inc. Tel. (760) 598-9899 www.texmate.com
IA09-11 Data Sheet (NZ339)
Texmate is an American manufacturer of high durability industrial grade panel meters, bar graphs, and transducers. Texmate's meters are frequently equipped with relays and various signal outputs for industrial automation applications and are known for their extremely long service life.