Product Detail
Versatile Instrumentation
Pre-amplifier
- Easy to use
- Small size
- Calibrated gain from 1 to 500
- Battery powered
- AD/DC coupling
- ICP accelerometer input
- Over voltage indication
- 20 KHz bandwidth Anti-alias filter
A small 2 channel pre-amplifier specially designed for those situations where some signal gain is required or where a transducer output is incompatible with your instrumentation input.
It has been specifically developed as a go anywhere, no- nonsense, sensible utility which will act as an instrumentation amplifier, an anti-alias filter, an isolation unit, an accelerometer interface, a differential to single ended convertor and an overload detector. And all this, times 2! In short, a convenience tool which will save valuable time and avoid frustration when you are taking measurements whether in the Lab or out in the field.
For instance, if vibration is to be measured, simply connect an ICP accelerometer direct to the VIP which can provide the necessary interf ace and give you a calibrated gain of up to 500.
The unit is compact, measuring less than 5” x 2.5” x 1 .5”, including switches and connectors. In spite of its small size, it has self contained rechargeable batteries which will last a reliable 8 hours in normal use before requiring a recharge. Its metal case ensures freedom from external electrical noise and compact internal design is ideal for withstanding the inevitable knocks and drops which will be encountered ‘on the job’.
The VIP includes an internal constant current circuit for battery recharging and a connector into which can be plugged the separate mains battery charger which is supplied with each unit.
Specification No of channels 2 Gain Switchable 1, 2,5, 10, 20, 50, 100, 200, 500 Gain accuracy +1% Bandwidth Low frequency: dc coupling: dc ac coupling: 0.5Hz (3 dB) High frequency: 1KHz: 1% 10 KHz: 3% 20 KHz: 3dB (±1dB) Filter Analogue low pass 4 pole Butterworth 3 dB point: 20 KHz Note: 8 pole filter (48 dB/oct.cutoff) performance obtained by connecting both channels in series. Input Differential, AC or DC coupled (Switchable) Common mode AC coupling isolation: ± 100V pk ICP input, AC coupled Input Impedance l Mohm Input range ±5V max. Input offset (1 + 5/G)mV max. (G = gain) Output ±7V max swing ± 5mA min. capacitive load 5nF max. Overvoltage LED indication for output greater than 6.0V CMRR at Gain=1: 70dBmin. at Gain = 10: 87 dB min. at Gain=100: l00dBmin. Noise 10uV pk-pk, rti. max. Drift (5 + 100/G)uV/°C max. Warm-up time 3 min to within 2uV final value Gain Drift 100ppm/°C max Supply Two PP3 rechargeable batteries Charging socket for external mains charger Battery life 8 hours min before recharging. Recharging cycle: 12 hours. Controls On/Of f switch Per channel: Gain select rotary switch. DC/AC/ICP input selector. Diff/Single ended selector Connectors Input: insulated BNC Output: BNC Battery charger: 5.5 x 2.1mm low voltage jack Operating temp. Operation within above spec.: 0 to +35°C Operation, spec not guaranteed: -20 to +60°C Physical Size: 114 x 64 x 45 mm (Excl. connectors) Weight: 300 grams
What you get with each VIP20:
- A fully calibrated 2ch. VIP20
- Internal rechargeable batteries (PP3 x 2)
- A mains power unit which will power the VIP20 and recharge the batteries. Includes leads and connector.
- User manual.
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| LAPLACE INSTRUMENTS
LTD 3B, Middlebrook Way, Holt Road, Cromer, Norfolk, NR27 9JR, UK |
Tel: + 44 (0)1263 515160 Fax: + 44 (0)1263 512532 E-mail:tech@laplace.co.uk |
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