DSZHHVAC Tools

DSZH Laser tachometer 290034006

The DSZH DT-2234BL is a laser tachometer for non-contact RPM measurement in HVAC and industrial applications, delivering ±(0.05% + 1 digit) accuracy across 10 to 99,999 RPM with 0.1 RPM resolution below 1,000 RPM and…

SKU 3G-CBM-01585

Also listed as: COR 40946 · COR-40946

Brand

DSZH

Item

Laser tachometer 290034006

Local availability & support

Delivery: Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment: Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

DSZH

model

DT-2234BL 

battery

4 x 1.5V AA 

accuracy

±(0.05% + 1 digit) 

resolution

0.1 RPM (<1,000 RPM) 

laser power

<1 mW 

measurement range

10 to 99,999 RPM 

power consumption

~20 mA DC 

detecting distance

50-2,000 mm 

Datasheet Content

LASER PHOTO TACHOMETER
Model : DT-2234BL   ISO-9001, CE, IEC1010
                Laser Photo TACHOMETER
                Model : DT-2234BL

                                  FEATURES
* Laser light detecting source, long measuring range up to 2 meters, it is
  useful in the RPM measurement application where the machine would
  be a risk to the operator or close access is difficult or not possible.
* Wide measuring range from 10 to 100,000 RPM, 0.1 RPM resolution for
  the measured value < 1000 RPM.
* Microprocessor based circuit, crystal time base, high precision with
  0.05% accuracy.
* High visible LCD display gives RPM reading exactly with no guessing or
  errors & saves battery energy.
* Memory with recall function, the last value, max., value, min. value will
  be stored into the memory automatically.
* The use of durable, long lasting components, including a strong, light
  weight ABS plastic housing, assures almost maintenance free
  performance for many years.

                                        SPECIFICATIONS
Display                             5 digits, 10 mm ( 0.4" ) LCD ,
                                    with function annunciation.
Measurement & Range                 10 to 99,999 RPM.
Resolution                           0.1 RPM ( <1,000 RPM).
                                    1 RPM ( 1,000 RPM ).
Accuracy                            ± ( 0.05% + 1 digit ).
Detecting                           50 - 2,000 mm typically.
distance                            * Spec. of detecting distance are that under the size of
                                      reflecting tape is 10 mm square & the measuring RPM
                                      value is 1,800 PPM. The max. detecting distance may
                                      change under different environment, different reflecting
                                      tape or the measuring RPM beyond 1800 PRM.
Laser light                         * Less than 1 mW.
source                              * Class 2 laser red diode.
                                       Wave length is 645 nm approximately.
Time base                           Quartz crystal, 4.194 MHz.
Circuit                             Exclusive one-chip of microcomputer
                                    LSI circuit.
Operating Temp.                     0 - 50 ℃ ( 32 - 122 ℉).
Operating Humidity                  Less than 80% R.H.
Memory                              Last / Max. / Min. ... value.
Battery                             4 x 1.5V AA ( UM-3 ) battery.
Power Consumption                   Approx. DC 20 mA.
Size                                190 x 72 x 37 mm
                                    ( 7.5 x 2.8 x 1.5 inch )
Weight                              250g ( 0.55 LB )/including battery.
Accessories                         Carrying case.............................................. 1 PC
Included                            Reflecting tape marks
                                    ( 600 mm )................................................. 1 PC
                                    Operation manual........................................ 1 PC
* Appearance and specifications listed in this brochure are subject to change without notice.   0601-DT2234BL

Technical Documents

(1)

Technical Document 1

PDF Document

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DSZH Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

Where can I buy the DSZH DT-2234BL laser tachometer worldwide?

3G Electric is an authorized distributor of DSZH test and measurement instruments. Order the DT-2234BL laser tachometer (part number COR40946) and we handle customs, logistics, and delivery to your facility globally. Lead time on request.

What is the measurement range and accuracy of the DT-2234BL?

The DSZH DT-2234BL measures 10 to 99,999 RPM with ±(0.05% + 1 digit) accuracy. Below 1,000 RPM, resolution is 0.1 RPM. The laser detecting distance is 50–2,000 mm for non-contact measurement on rotating shafts and equipment.

What power source does the DSZH DT-2234BL require?

The DT-2234BL runs on 4 × 1.5V AA batteries with approximately 20 mA DC power consumption, enabling portable use on HVAC units, motors, and industrial machinery without mains power.

Used in

Common applications for DSZH

Split-system air-conditioner service: DSZH manifold bases and SAE/NPT reducers integrate with technician gauge sets for pressure monitoring and refrigerant charge.

Rooftop packaged unit maintenance: Flare connector caps, hose tips, and union fittings expedite field replacement of damaged lines and adapters on commercial cooling systems.

Refrigerant recovery and recycling: DSZH bottle adapters (R600A-rated) connect recovery cylinders to hose lines, enabling safe extraction of flammable and standard refrigerants.

Process-cooling loop installation: SAE straight male/female unions and reducers support temporary or permanent manifold assembly on industrial water-chilled equipment.

Heat-pump seasonal service: DSZH dudgeon extensions and adapter kits allow technicians to connect diagnostic gauges to restricted or recessed access ports on reversing-valve manifolds.

Field emergency repairs: Individual DSZH fittings stocked in stock allow technicians to repair or modify hose connections on-site without returning to the shop for components.

DSZH Products

3G Electric supplies DSZH hvac tools. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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