?SMOOTHMOVINGPOINTER BARGRAPH

?BUILT IN SCA

?AUTORANGING W/ RANGE HOLD

?USER PROGRAMMABLE

?LOG AND LINEAR BARGRAPH

?RATE, SCALER AND INTEGRATE MODES

?DIGITAL CALIBRATION

?USER DEFINED KEYS, UNITS, & RANGES

?DEADTIME CORRECTION

The“Cypher”is an advanced survey instrument. It is very user friendlyand usesdigital technology to greatly enhance its operation. Itworks withmost GM, proportional, and scintillator probes anddisplays theinformation on a backlit alphanumeric LCD. The displayhas a movingpointer bargraph that closely approximates a metermovement. It issmooth, easy to read and accurate. The digitallevel and thebargraph scale are also shown on the display.

The instrument has many different modes including rate,integrate,and scaler. Each mode is independently programmable andmay beturned off. It can be set up as a simple ratemeter with onlyonemode or it can be set up for all 6 modes. Thus it can beeasilyadjusted to suit your application. If that applicationchanges itis easy to reconfigure for a new one. This instrumenthelps you getthe readings you want. It is difficult to misread thedata with theunits and range information shown right on thedisplay.

The 4 soft-key buttons on the front panel operate theinstrument.The two on the right are user defined. One user may wantto usethem for light and beeper while another may want to use themforrange hold and reset. The soft-keys also help to simplifytheoperation of the instrument. There is only one level ofdisplay;you are never lost in a maze of menus.

The digital nature of the instrument means that setup,calibrationand maintenance are greatly simplified. Many of theoperational andcalibration functions can be controlled or set fromeither thefront panel or the inside panel or both. The accuracy ofthe datais assured by a crystal controlled timebase and theswitchabledeadtime correction extends the linear range ofmostprobes.?

The “Cypher” survey instrument is small, rugged, and light. Itissimple to operate, loaded with features and programmable foreithersimple or advanced uses. It is the perfect allaroundinstrument.
Specifications Mechanical Size overall: 7.5 in. (19 cm) L x4.2in. (10.7 cm) W x 4.45 in. (11.3 cm) H w/o probe holder.Gasketedsplashproof aluminum enclosure. Top panel is milled andanodize**ith nonerasable nomenclature. Bottom painted. LCD windowisacrylic. Weight: 2.25 lb. (1 kg) with batteries. External controls: 4 pushbuttons (Power, Mode,*,and??). Power button when held down for 5 secondsresetsthe microprocessor. Internal controls: 1 pushbutton for entry intocalibratemode. Internal construction: Circuit board hinges for easyaccess.Batteries are mounted on an aluminum panel in nylon holders.ICsare socketed. All components are standard types. Probe clip: For 1" Dia handle. Others sizes available. Electrical Detectors:Accepts GM, proportional and scintillationprobes. Display: 2 line x 16 character alphanumeric supertwistLCDwith backlight. Backlight may be timed or on/off.Contrastadjustable from front panel. Audio: Built in piezo beeper at 2.4 kHz. Selectable to beepatevery 1, 8, 64 or 2048 counts. May be switched to off, softorloud. Single channel analyzer: may be switched in or out.Threshold,window & gain digitally set from front panel,internally orboth. Gain has three settings, Threshold and window200settings. High voltage: Adjustable from 300 to 2000 Volts for GMandproportional detectors. 300 to 1600 Volts for Scintillatorswith100 meg voltage divider. Actual measured HV can be displayed onthescreen. HV monitored for proper operation. Batteries: 6 AA cells for 100 hour life. Batteryconditiondisplayed at turn on and turn off. Low battery warningduringoperation. Instrument will automatically turn off whenbatteriesare too low for proper operation. May be set for autoturnoff. Calibration and parameter storage: Data stored inpermanentmemory for minimum of 40 years. Batteries not requiredforstorage. Operational Modes:6 modes available, not all need be used; Rate,Integrate, CPM orCPS, Scaler, and 2 user defined to any mode withseparatecalibration. Calibration, Setup, and Maintenance modealsoavailable. Units: rem, rad, R, Sv, Bq, dis, cts, CPM, CPS. Time base:/s,/m, /h Prefix: p,n,u,m,K,M,G,T and none. User definedunitsavailable. User defined keys: *, and??are user definedsoftkeys for each mode. Power and Mode buttons are also used assoftkeys for some functions. Menu selection: Simple to operate. Single level menus.Modebutton will access all normal modes quickly and easily. Rate mode: Shows numeric value of rate with userselectedunits and timebase. Updated every second. Prefixautomaticallyselected but may be preprogrammed. Limited to 3significantdigits.??Autoranging w/range hold. Bargraphalsodisplayed if desired. CPM/CPS mode: Same as rate mode except units are CPM orCPS.May also be programmed as cnts/m or cnts/s. Integrate mode: Shows Integrated dose or counts inuserconfigured units. Also shows integration time. Scaler mode: Shows counts up to 6 digits. Count timevariablefrom 1 sec to 999 min. Beeper from counts or timeout. Softkey * and??key: User defined forrate,integrate, and CPM/CPS modes. Choices include: Light, Beeper,Hold,Reset, TC, and Range Hold. Bargraph: Moving digital pointer on background ofscalemarkings. Updated 10 times every second. Full scale of 2.5, 5or 10and log are user selectable. Bargraph width is 2.2 in (5.6cm).Markings for each scale are user changeable from insidetheinstrument. Full scale markings are actively shown on thedisplayin the proper units & prefix but may be turnedoff. Additional setup options: Display exchange 1st and 2ndlines,time to range up, time to range down, min range, max range,decimalpoint-prefix change limit. Auto turn-off time. Response Range:0.1 to 1,000,000 CPM with multiplier. Accuracy: Within 1% or 2 digits for Count rates from 1to1,000,000 CPM. Timebase is crystal controlled. Radiationaccuracyis dependent on probe. Time constant: Dynamically set depending on count rate buthassettings of short, med and long. Dead time correction: Corrects up to 10 times actual rate.Maybe independently set on or off for each mode. Environmental Temperaturerange: -15°C to 50°C Temperature dependence: HV ±2%, Rate ±1%, overtemprange. Humidity range: 0 to 95% non condensing Options Inputconnector: BNC standard. MHV, C, and SHV alsoavailable. Options: Probes, cable and probe holder. Repair manual. Equipment: Supplied w/ manual, batteries, scales,probeholder Specifications subject to changewithoutnotice