bPAD 422

Digital single-channel analyser in the tube socket with RS422/485, for radiotracer measurements

Compact, tube-based digital single-channel analyser of the bPAD type with an RS422/485 interface. Together with BrightSpec’s digital counters (DAS) in a carrying case it forms a measurement system for radiotracer applications in industrial processes.

Weight
Approx. 80 g1
Datasheet

Specifications checked against the manufacturer’s documents on 2026-10-17

Manufacturer’s product page (opens in a new tab)

Overview

Key features

  • Set up digitally; PC application with pseudo-PHA
  • Recommended for use with BrightSpec’s acquisition system (DAS)
  • TTL output via SMA as an option

Specifications

The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.

CommunicationRS422/485; SCA pulses via RS422; TTL output via SMA optional1
GainCoarse ×1, ×2, ×4, ×8 (optionally also ×16, ×32, ×64, ×128); fine ×1–×2 in 4,096 steps1
DiscriminatorUpper and lower level discriminator, 2,048 steps1
Detector high voltageBuilt-in, 0 to +1,500 V in 4,096 steps1
Supply voltage9–36 V (3.81 mm pluggable terminal block)1
Power consumptionMax. 1 W1
DimensionsHeight 71 mm, diameter 56 mm1
WeightApprox. 80 g1

The data comes from the manufacturer’s published documents. Manufacturers may change specifications; the current configuration and performance are confirmed in the quotation.

Documents

Sources

The number after each value refers to the source listed below. Values are as published by the manufacturer; the exact configuration is always confirmed in our quotation.

  1. 1
    Publisher: BrightSpecDatasheet p. 2, Technical Specifications Checked 2026-10-16
bDAS
BrightSpec

bDAS

Digital acquisition system for synchronised counting with up to 12 probes

Weight
Probe: approx. 4 kg
6 referenced values
bPAD
BrightSpec

bPAD

Digital single-channel analyser (SCA) in the tube socket, controlled via USB

Weight
Approx. 90 g
9 referenced values
bPAD+VR
BrightSpec

bPAD+VR

bPAD+ with an analogue output for pulses or count rate, e.g. for flow instruments

Operating modes
Differential and integral
Discriminator
Upper and lower level discriminator, 2,048 steps
Gain
×1–×16 (×1–×256 on request)
8 referenced values
ILLUSTRATION
BrightSpec

bPAD+

bPAD with an extra analogue pulse output to an external MCA

Operating modes
Differential and integral
Discriminator
Upper and lower level discriminator, 2,048 steps
Gain
×1–×256
8 referenced values
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