WS05C

WS05C-3 with opt. accessories


Stationary room monitoring system for dose rate measurement of gamma radiation and X-rays preferably used for permanent monitoring of isotope laboratories, radiotherapy rooms, storage rooms for radioactive materials, etc.

 

Fields of application

NDT, Nuclear Medicine, Nuclear Technology,
Industry, Chemistry, Research

 

Features

  • WS05C-1: Area monitor (1 measuring channel) with RS-232 interface for the operation with any probe of the GRAETZ-programme.
  • WS05C-2: Area monitor (2 measuring channels) with RS-232 interface for one measuring channel, for the simultaneous operation of max. 2 different or similar probes - any of the GRAETZ-programme.
  • WS05C-3 (see illustration): Area monitor (3 measuring channels) with RS-232 interface for one measuring channel, for the simultaneous operation of max. 3 different or similar probes - any of the GRAETZ-programme.

Each measuring channel indicates the measured values on a digital, illuminated LC-display (60 mm × 30 mm). For each channel four individual dose rate alarm thresholds are free programmable over the whole measuring range of the connected probes. 

When using gamma probes, the dose rate is displayed in Sv/h. When an end window probe (α-/β-measurements) or a NaI-scintillation probe (β-/γ-measurements) is connected, the measured value is displayed in cps. Additionally to the digital display, the dose rate is also indicated in analog form by a logarithmic bar graph. 

The instrument is autoranging. When a measuring channel triggers a dose rate alarm, the integrated alarm light of the WS05C gives an optical as well as an acoustical alarm. In the standard version:

          green    "ready for operation",
          orange   "alarm threshold exceeded”,
          red        "error message" (e.g. probe failure)

The red LED situated above the display indicates which measuring channel triggered the alarm.

For connecting the WS05C with a computer, an RS-232 interface for one measuring channel is available.

Options

    • relay output for an additional external alarm lamp for each measuring channel or a
      potential free relay output for each measuring channel instead of the relay output for the external alarm lamps (max. switching voltage/current: 24 V, 20 mA)
    • switching off acoustic alarm  (only triggered when an alarm threshold is exceeded and the the door of the monitored room is open)
    • emergency power supply (300 W) for the uninterruptible operation of the WS05C in case of mains failure
    • external alarm lights (optical/acoustical)
    • probe cable (standard length: 1,25 m), extension up to 100 m 
    • special versions on demand

 

Technical Data 
 

Types
- WS05C-1
- WS05C-2
- WS05C-3

for connecting one probe 
     for the simultaneous connection of max. 2 probes
    for the simultaneous connection of max. 3 probes
Probes The probes are preferably connected by means of a
probe cable (up to 100 m) or directly via the sockets
of the WS05C.     
Available probes  Indication range                  PTB measuring range
18545 CE 60 nSv/h – 200 µSv/h        150 nSv/h – 200 µSv/h
(γ-radiation and X-rays)
18550 CE 100 nSv/h - 20 mSv/h          10 µSv/h - 20 mSv/h
(γ-radiation and X-rays)
18529 CE 10 µSv/h – 10 Sv/h            0.5 mSv/h – 10 Sv/h
(γ-radiation and X-rays)
18509 CE 10 µSv/h – 1 Sv/h          50 µSv/h – 1 Sv/h
(γ-radiation and X-rays)
18526 D cps, α-, β-, γ-radiation
NaI-scintillation probe 2002 cps, β-, γ-radiation

                                      

Please note:     The PTB-approval of the probes is only
                             valid when used together with the dose
rate meter X5C plus .

Measurand Ḣ*(10) ambient dose rate equivalent for CE-probes
Measuring accuracy ≤ ± 10 %
Display

each measuring channel is equipped with
an illuminated LC-display

Indication digital display in Sv/h or cps, depending on the
connected probe; analog indication by a logarithmic
bar graph
Alarm probe failure
dose rate alarm thresholds 1 – 4
dose alarm thresholds 1 – 4
Alarm signals integrated optical/acoustical signal, triggered when a connected probe signalizes an alarm (orange) and/or error message (red)
 
red LED (at each measuring channel) signaling a triggered alarm threshold
Interface RS-232 for 1 measuring channel
(WS05C-2 / WS05C-3 → first measuring channel)
Dose rate alarm thresholds for each measuring channel 4 dose rate alarm thresholds
are free programmable over the whole measuring range
of the connected probes
Dose alarm thresholds for each measuring channel 4 dose alarm thresholds
are free programmable over the whole measuring range
of the connected probes
Temperature range 0°C up to +40°C for the area monitor
-30°C up to +60°C for the probes
Humidity max. 90 % relative humidity
Power supply 90 - 260 V AC   200 mA max.   50/60 Hz
Housing plastic, high impact
Dimensions/Weight 260 mm × 230 (455) mm × 150 mm
approx. 2800 g

Remark: The electronics used for each single measuring channel is taken
               from the PTB-approved dose rate meter X5C plus.