CARLO GAVAZZI LDI 35 - CONFIGURATION SOFTWARE, LDI35.AV0, LDI35.AV2, LDI35.CF Operating Instructions Manual

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LDI 35

OPERATING INSTRUCTIONS

• General features 2

• Technical features 3

• Installation 10

• Preliminary operations 12

• Front panel description 13

• Operating mode 15

Important:

We suggest you keep the original packing for a further shipping of the
instrument.
In order to guarantee a correct use of the instrument, we recommend
the user to carefully read the present instruction manual.

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CARLO GAVAZZI Instruments
Multi-range µP-based panel indicators/controllers for voltage, cur-
rent and temperature measurements

LDI35.AV0 / LDI35.AV2 / LDI35.CF

rev.0

Operating instructions
Important:

We suggest you keep the original packing for a further shipping of the
instrument.
In order to guarantee a correct use of the instrument, we recommend the
user to carefully read the present instruction manual.

GENERAL FEATURES

The most important features are:

•measurement of the input value;

•display of the measured value;

•one control point of the measured value (if available);

•display of the maximum measured value.

The main programming parameters are:

•input selection;

•programming of: electrical scale, displayed scale and decimal point
position;

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•selection of displaying mode;

•programming of all the parameters relating to the set-point (if available);

•programming of all the parameters relating to the digital filter.

TECHNICAL FEATURES

ACCURACY (VOLTAGE AND CURRENT)
LDI35.AV0: ±0.3% F.S., ±1 dgt (@ 25°C ±5°C, R.H. ≤60%);
LDI35.AV2:

VDC and ADC: ±0.3% F.S., ±1 dgt (@ 25°C ±5°C, R.H. ≤60%);
V AC and AAC: ±0.5% F.S., ±1 dgt (@ 25°C ±5°C, R.H. ≤60%, 50/60Hz,
5 to 100% F.S.).

ACCURACY (LDI35.CF: RTD/Ω TEMPERATURE)

Pt100/Pt1000: ±0.3% F.S., ±2 dgt (@ 25°C ±5°C, R.H. ≤60%);
Ni100: ±0.5% F.S., ±2 dgt (@ 25 °C ±5°C, R.H. ≤60%);
Ω: ±0.3% F.S., ±2 dgt (@ 25°C ±5°C, R.H. ≤60%).

ACCURACY (LDI35.CF: TC TEMPERATURE)

±0.3% F .S., ±2 dgt (@ 25°C ±5°C, R.H. ≤60%) from -50°C to the limit of
the input range;
±1% F .S., ±2 dgt (@ 25°C ±5°C, R.H. ≤60%) from -200°C to -5°C of the
input range.

TEMPERATURE DRIFT (VOLTAGE AND CURRENT)
LDI35.AV0: ±200 ppm/°C;
LDI35.AV2: ±200 ppm/°C.

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TEMPERATURE DRIFT (LDI35.CF: RTD / TC / Ω)

± 200 ppm/°C.

SAMPLING RATE
LDI35.AV0: 4 times/second, dual slope 16 bits A/D converter
LDI35.AV2: 2 times/second, dual slope 16 bits A/D converter
LDI35.CF temperature measurement: 2 times/second, dual slope

16 bits A/D converter

DISPLAY

7-segment LED, h 14.2 mm; 3 1/2 digits or 3 digits + dummy zero.

MAXIMUM INDICATIONS
LDI35.AV0: 3 1/2 digit: 1999; 3 + 0 digit: 9990;
LDI35.AV2: 3 1/2 digit: 1999 (DC/AC); 3 + 0 digit: 9990 (DC/AC);
LDI35.CF: temperature: depending on the range and on the type of

probe; resistance: 199.9 Ω (STD) / 1999 Ω (on request).

MINIMUM INDICATIONS
LDI35.AV0: 3 1/2 digit: -1999; 3 + 0 digit: -1990;
LDI35.AV2: 3 1/2 digit: -1999 (DC), 0 (AC); 3 + 0 digit: -1990 (DC), 0 (AC).
LDI35.CF: temperature: depending on the range and on the type of

probe; resistance: 0.

MEASUREMENT (VOLTAGE / CURRENT)
LDI35.AV0: DC voltage/current.
LDI35.AV2: DC voltage/current and AC voltage/current (measurement

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of the average value resulting from the sine half-wave rectification of the
input voltage/current by RMS calibration).

VOLTAGE / CURRENT INPUTS (LDI35.AV0)

200 mVDC, range: -199.9 mVDC to 199.9 mVDC
20 VDC, range: -19.99 VDC to 19.99 VDC
200 VDC, range: -199.9 VDC to 199.9 VDC
2 mADC, range: -1.999 mADC to 1.999 mADC
20 mADC, range: -19.99 mADC to 19.99 mADC
Other inputs are available by acting on the scaling parameters.

VOLTAGE / CURRENT INPUTS (LDI35.AV2)

200 VDC, range: -199.9 VDC to 199.9 VDC
500 VDC, range: -500 VDC to 500 VDC
2 ADC, range: -1.999 ADC to 1.999 ADC
5 ADC, range: -5.00 ADC to 5.00 ADC
200 VAC, range: 0 VAC to 199.9 VAC
500 VAC, range: 0 VAC to 500 VAC
2 AAC, range: 0 AAC to 1.999 AAC
5 AAC, range: 0 AAC to 5.00 AAC
Other inputs are available by acting on the scaling parameters.

FREQUENCY RANGE (VOLTAGE / CURRENT - LDI35.AV2)

From 40 to 400 Hz (accuracy: ± 0.5% F.S., ± 2 dgt @ 25 °C, 400 Hz).

OVER-RANGE (VOLTAGE / CURRENT)

Continuous: 1.2 Un/In (rated inputs), for 1 second: 2 Un/In.

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INPUTS (RTD TEMPERATURE / Ω)

CFX: RTD, Pt100, range: -200 °C / -328 °F to +850 °C / 1562 °F
CFX: RTD, Ni100, range: -60 °C / -76 °F to +180 °C / 356 °F
CFX: Ω, 200.0 Ω, range: 0 Ω to 199.9 Ω
CFP: RTD, Pt1000 range: -200 °C / -328 °F to +850 °C / 1562 °F
CFP: Ω, 2000Ω range: 0 Ω to 1999 Ω
Other inputs are available by acting on the scaling parameters.

INPUTS (TC TEMPERATURE)

CFX/CFP: TC-J, range: -50 °C / -58 °F to +760 °C /+1400 °F
CFX/CFP: TC-L, range: -50 °C / -58 °F to +760 °C / +1400 °F
CFX/CFP: TC-K, range: -200 °C / -328 °F to +1260 °C / +1999 °F
CFX/CFP: TC-S, range: +350 °C / +1750 °C
CFX/CFP: TC-T, range: -200 °C / -328 °F to +400 °C / +752 °F
Other inputs are available by acting on the scaling parameters.

COMPENSATION (RTD/Ω)

For 3-wire connections, line resistance up to 10 Ω.

COMPENSATION (TC)

Cold junction, within a temperature range from 0 to 50 °C of ambient
temperature.

ALARM SET-POINTS

0 (standard) 1 (on request).
Alarm type: the alarm is active only for under/over-range, high alarm, low
alarm, low alarm with disabling at power-on, high alarm with latch, low

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alarm with latch.
Set-point and hysteresis level: programmable from 0 to 100% of the
displayed range;
Activation/deactivation time delay: programmable from 0 to 255 seconds;
Relay status: selectable; normally energized/de-energized;
Output contacts: 1 SPDT; rating: 5A, 250VAC/VDC, 40W/1200VA,

130.000 cycles;
min. response time: ≤500 ms (filter excluded, set-point activation time
delay: “0”);
Insulation: 2000VRMS between output and measuring inputs; 2000VRMS
between output and excitation output.

DIGITAL FILTER

Operating range: from 0 to 1999 / 9990;
Filtering coefficient: from 1 to 255.

DATA HOLD

Automatic storage (RAM only) of the maximum value measured from the
previous storage reset onwards.

EXCITATION OUTPUT VOLTAGE (on request)

15 VDC insulated, not stabilized / max. 40 mA.

EXCITATION OUTPUT INSULATION

100VRMS between output and measuring input
4000VRMS between output and AC power supply input
500VRMS between output and DC power supply input.