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Overview

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These advanced instruments provide engineering unit display of a strain gage (mV/V) input and a frequency input. They also compute power and perform 21 functions including limit checks, tare, hold and max./min. capture. You needn’t write code or add hardware to be up and running a productive test. The alphanumeric readout can display measured and computed data, units of measure, and test status. During setup, it guides you with English language prompts. There are no manual adjustments. To calibrate, enter the full scale value in engineering units and auto-cal takes over. Provides 0.01 % (max.) resolution and ±5 V and/or ±10 V analog outputs at full scale. The keyboard accesses measured data, held data, max./min. data, data spread, limit status, and/or I/O status without disruption. Password protection may be used, if needed.
7541-111 Portable - Honeywell


Technical Specifications

Order Code 7541-111
Input Type Any 80 Ohm to 2K Ohm transducer, directly wired or transformer coupled. 4, 6, or 7 wire circuits are accommodated
Display Type LCD
Numeric Display Format 16 x 2
Transducer Excitation ac excitation: 3 V RMS, 3.28 kHz ±0.01 % sine wave. Regulated and short circuit protected
Type of Inputs Single display (one input)
Sensitivity 1.0 mV/V to 4.5 mV/V with 50 % overrange; automatically scaled
Supply Voltage 90 Vac to 250 Vac
Input Resistance 100 mohm in parallel with 33 pF
Automatic Null In Phase: ±10 % of full scale (with 50 % overrange), ±60 % of full scale (with 0 % overrange), Quadrature: ±1 mV/V
Auto Calibration Dual polarity shunt calibration with provision for CAL resistor feedback
Spurious Signal Rejection 60 Hz: 120 dB common mode, 100 dB normal mode. Carrier quadrature: 60 dB
Anti-Alias Filter 200 Hz, 7-pole Bessel response filter
Low-Pass Filtering 20 kHz (-3 dB) or none (this filter is not available for TTL inputs)
Resolution 0.01 % of full scale
Overall Accuracy 0.01 % of full scale @ 25 °C [77 °F]; 0.015 % of full scale @ 5 °C to 50 °C [41 °F to 122 °F]
Frequency Input Any unidirectional or bidirectional (quadrature) source including self-generating and zero velocity magnetic pickups, optical encoders, flowmeters, etc. When used with bidirectional sensors, the conditioner outputs both direction and magnitude
Input Impedance and Configuration Differential or single-ended inputs. 100 kohm differential, 50 kohm single ended
Input Threshold (Keypad Selectable) 10, 20, 50, 100, or 200 mV pk-pk (between inputs) or TTL
Maximum Voltage ±130 Vdc or 130 Vrms
Input Signal Bandwidth 0.001 kHz to 200 kHz (10 mV to 200 mV pk-pk threshold); 0.001 kHz to 400 kHz (TTL threshold)
Display Ranges and Resolution Rangeless (use any full scale engineering unit value) with 50 % overrange. Resolution is 0.01 % of full scale
Maximum Transducer Cable Length 500 ft, except 200 ft for 100 ohm or lower strain gage transducers
Signal-to-Noise Ratio With 1/10/100/200 Hz filters 86/76/66/62 dB @ 1 mV/V full scale and 86/80/72/66 dB @ 5 mV/V FS
Maximum Baud Rate 300 to 38400. Maximum cable length: 4000 ft (RS-422/RS-485), 50 ft (RS-232)
Response Time Greater of: 1 ms, typ. (2 ms worst case) or the input pulse length
Overrange Indicator ±8.2 V @ ±5 V full scale or ±13.5 V@ ±10 V full scale
Common Mode Rejection 80 dB (60 Hz), 55 dB (0 kHz to 10 kHz)
Weight 1,36 kg [3 lb]
Product Dimensions 165 mm W x 74 mm H x 221 mm D [6.5 in W x 2.9 in H x 8.7 in D]
UNSPSC Code 41111605
UNSPSC Commodity Strain gages
Availability Global
Series Name 7541

Technical Specifications

Order Code 7541-111
Input Type Any 80 Ohm to 2K Ohm transducer, directly wired or transformer coupled. 4, 6, or 7 wire circuits are accommodated
Display Type LCD
Numeric Display Format 16 x 2
Transducer Excitation ac excitation: 3 V RMS, 3.28 kHz ±0.01 % sine wave. Regulated and short circuit protected
Type of Inputs Single display (one input)
Sensitivity 1.0 mV/V to 4.5 mV/V with 50 % overrange; automatically scaled
Supply Voltage 90 Vac to 250 Vac
Input Resistance 100 mohm in parallel with 33 pF
Automatic Null In Phase: ±10 % of full scale (with 50 % overrange), ±60 % of full scale (with 0 % overrange), Quadrature: ±1 mV/V
Auto Calibration Dual polarity shunt calibration with provision for CAL resistor feedback
Spurious Signal Rejection 60 Hz: 120 dB common mode, 100 dB normal mode. Carrier quadrature: 60 dB
Anti-Alias Filter 200 Hz, 7-pole Bessel response filter
Low-Pass Filtering 20 kHz (-3 dB) or none (this filter is not available for TTL inputs)
Resolution 0.01 % of full scale
Overall Accuracy 0.01 % of full scale @ 25 °C [77 °F]; 0.015 % of full scale @ 5 °C to 50 °C [41 °F to 122 °F]
Frequency Input Any unidirectional or bidirectional (quadrature) source including self-generating and zero velocity magnetic pickups, optical encoders, flowmeters, etc. When used with bidirectional sensors, the conditioner outputs both direction and magnitude
Input Impedance and Configuration Differential or single-ended inputs. 100 kohm differential, 50 kohm single ended
Input Threshold (Keypad Selectable) 10, 20, 50, 100, or 200 mV pk-pk (between inputs) or TTL
Maximum Voltage ±130 Vdc or 130 Vrms
Input Signal Bandwidth 0.001 kHz to 200 kHz (10 mV to 200 mV pk-pk threshold); 0.001 kHz to 400 kHz (TTL threshold)
Display Ranges and Resolution Rangeless (use any full scale engineering unit value) with 50 % overrange. Resolution is 0.01 % of full scale
Maximum Transducer Cable Length 500 ft, except 200 ft for 100 ohm or lower strain gage transducers
Signal-to-Noise Ratio With 1/10/100/200 Hz filters 86/76/66/62 dB @ 1 mV/V full scale and 86/80/72/66 dB @ 5 mV/V FS
Maximum Baud Rate 300 to 38400. Maximum cable length: 4000 ft (RS-422/RS-485), 50 ft (RS-232)
Response Time Greater of: 1 ms, typ. (2 ms worst case) or the input pulse length
Overrange Indicator ±8.2 V @ ±5 V full scale or ±13.5 V@ ±10 V full scale
Common Mode Rejection 80 dB (60 Hz), 55 dB (0 kHz to 10 kHz)
Weight 1,36 kg [3 lb]
Product Dimensions 165 mm W x 74 mm H x 221 mm D [6.5 in W x 2.9 in H x 8.7 in D]
UNSPSC Code 41111605
UNSPSC Commodity Strain gages
Availability Global
Series Name 7541

Documents

TITLE DOCUMENT TYPE LANGUAGE SIZE
Model 7541_highres_photo Photo English 1MB
Model 7541_lowres_photo Photo English 240KB
Model 7541 AC Carrier or DC Strain Gage Conditioner Indicator Datasheet Datasheet English 169KB
Model 7541 Front View Photo English 139KB
Model 7541 Bottom View Photo English 146KB
Model 7541 Top View Photo English 199KB
Model 7541 Top Angle View Photo English 125KB
Instrumentation Accessories Datasheet Datasheet English 641KB

Product Features

  • May be calibrated in two directions (clockwise and counter-clockwise or tension and compression)
  • Fast, rock-solid readings with high noise immunity - 2000 samples/sec for torque, head, or drawbar force input - 1 ms response for speed
  • One or two channel input
  • Six-digit engineering unit with legends and 0.01 % resolution max.
  • RS-232, RS-422, RS-485 serial communication
  • Auto-scaled ±5 V and/or ±10 V analog outputs
  • No pots, batteries, fans, maintenance, or external power supplies
  • Excitation: ac carrier models, 3.28 kHz, 3 V rms; dc models, 5 V or 10 V dc, user selectable
  • CE approved

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