Testo 400 Specifications

Portable Reference Technology

The Intelligent, Modular Measuring Instrument Series

testo 950 testo 650 testo 400

°F

% RH

g/kg

PSI

fpm

cfm

ppm

ppm CO

U/min

Vol.

Max/Mn

Mean

Messort

m/s

°C

Precision reference class instruments have everything necessary to complete complicated measurement tasks efficiently, accurately and conveniently.

All of the Pro Class instruments measure the basic parameters of temperature, CO

, rpm, current and voltage. When used together with the new high accuracy probe 0614 0240, testo 950 has a system accuracy of 0.09°F at a resolution of up to 0.0001°F (measuring range 32 to 200°F). The testo 650 additionally measures humidity and pressure and the testo 400 adds velocity and volume flow to its capabilities. Both the testo 950 and testo 650 can be upgraded at any time.

Testo’s Professional Class instruments stay current with intelligent electronics to ensure the latest technology is utilized through software updates.

Upgradable, highly reliable and of the highest quality - these are the properties which guarantee you are equipped for the future.

Sophisticated but not complex

The Pro Class instruments recognize the respective probe connected and show the next possible steps in the display to ensure that the measuring tasks can be carried out quickly, easily and efficiently. The drop down menus provide effortless operation. Three fast function buttons, defined by the user, make it possible to quickly call up the most commonly used measurements or calculations at the touch of a button. The large display can show up to 6 readings simultaneously. Press one button to save data to memory or to print on location.

Powerful data processing

Measurements are easliy organized by creating files and folders either in the meter or your PC. Numerous display, formast and analysis options, like calculations, tables, diagrams, histograms, and other forms are available in your PC and facilitated by the ComSoft 3 Software.

Ideal for long-term or snapshot readings

All relevant parameters such as the beginning and end of a measurement, measurement intervals, limit exceeded and date/time can be programmed for long-term measurement. Online measurement to a PC is also possible. Spot checks with immediate printouts of the file and program, including the user´s company logo, address and other notes can be printed as well.

Quick and informative

Using the Ventilation Air Conditioning (VAC) module, assessment of the required functionality of a system in accordance with ASHRAE immediately on location without the need for extensive additional calculations. (testo 400) Other important parameters from the phsychrometric chart are saved for calculations. (testo 400/650) All of the Proc Class meters easily calculate and display minimum, maximum and mean values, such as, dewpoint, wet bulb, and absolute humidity (testo400/650).

Portable Reference Measurements

Probes

testo 950 / 650 / 400

Attachable printer

(optional)

Location

Mean

1.42

m/s

Fast function buttons

Saves/ Prints

Vol.

Location

Messort

Max/Min

Meam

m/s

°C

Data communication via RS232 and barcode pen input

Back lit display

Power supply connection/ Fast battery recharging

2 freely assignable probe inputs

Reliable readings

- the right probe for all applications

Highly accurate immersion/penetration probe with a system accuracy of 0.05°C in the measurement range from 0 to 100°C and a resolution of up to 0.001°C

Quick-action surface probe to measure surface temperature

Precision air probe to measure air temperature

Quick-action immersion/penetration probes to measure liquids and food

Globe thermometer to measure radiation heat

Current/voltage cable (± 1 V, ± 10 V, 20 mA) for example, to check stationary transmitters

probe

to determine ambient air quality

Highly accurate reference humidity/temperature pobes For highest accuracy (± 1% RH)

Quick-action surface probe to measure surface temperature

Precision air probe to measure air temperature

Equilibrium probe to determine equilibrium moisture

Differential and absolute pressure probes

for pressure and velocity measurements

Temperature measurements

“Smart” probes with built-in EPROMS store calibration data in the probe Patented crossband probe for fast surface measurements Custom-designed temperature probes for your application System accuracy of testo 950 is up to 0.05°C with precision probe 0614 0240

Current and voltage measurements

Optional connection of external transmitters, such as particle counters and pressure transmitters and scaling of input in instrument

CO and CO2measurements

Long-term stable, 2 channel / IR sensor for C02 measurements

Humidity measurements

The first PTB accredited DKD laboratory for air moisture and dew point temperature guarantees reliable readings Worldwide patented (capacitive) Testo humidity sensor Inter-laboratory tests in national and international institutes confirm a sensor accuracy of ±1 %RH 2 year guaranteed long-term stability of the Testo humidity sensor (<1% / year) Easy calibration

Pressure measurements

Very high accuracy in lower measuring range (.01 psi) from +/- (4.3 psi + 0.5 % of reading) Temperature-compensated pressure measurement

Refrigerant-proof high pressure probes for maintenance on refrigeration systems/water measurement

Pitot tubes to measure velocity in dirty, hi-temp, or high velocity application conditions

Smaller diameter vane probes For measurements in ducts, with temperature measurement

Large diameter vane probes For integrating measurements on outlets

Quick-action hot wire probes For low velocities in supplies

Rugged hot bulb probe For direction-independent velocity measurements

Comfort level probe For turbulence level measurements to ASHRAE 2

Velocity measurements

Efficient readings by one of the first PTB accredited laboratories for velocity Reference laser Doppler anemometer guarantees calibration accuracy from 0.5 % of reading Thermal probes for high accuracy up to +/- (6 fpm + 5% of reading) in measuring range up to 4000 fpm Density independent measurement from 200 “H20 absolute pressure or up to 660 °F ambient temperature with vanes in measuring range from 80 fpm to 1200 fpm

Comfort level measurements

High accuracy to determine degree of turbulence from ± (6 fpm + 4% of reading)

testo 950 without probes

0563 4001

305,-

Part no.

testo 400

• Velocity, volume flow

• Humidity, pressure

• Temperature

• CO

, rpm and current/voltage

testo 950 - Reference temperature meter / logger

The testo 950 measures:

Temperature CO

, rpm, current and voltage

Functions:

System accuracy up to 0.09°F and up to a resolution of 0.001°F with the new high precision probe 0614 0240 Stores a surface addition for EEPROM probes The system for each probe can be adjusted to "zero error" at an adjust-

ment point via precision adjustment, i.e. system adjustment in a highly accurate adjustment bath to "zero error". Adjustment of a quick-action EEPROM temperature probe to a highly accurate precision probe ensuring fast and highly accurate measurement. Fast temperature measurement with extrapolation to full-scale value

testo 950 / 650 / 400

testo 650 - Reference humidity / pressure meter / logger

testo 650 also measures:

Temperature CO

, rpm, current and voltage

Humidity, Pressure

Functions:

All functions of testo 950 and Calculation of all parameters in the Mollier (psychometric) chart: Relative humidity %RH, dew point and pressure dew point (td, tpd) Absolute humidity g/m³, psychrometric wet bulb temperature Degree of humidity (g/kg), partial pressure in water vapor in “H20/psi Enthalpy (kcal/kg) Water activity measurements Barometric air pressure

testo 400 - The multi-function meter / logger

The testo 400 also measures:

Temperature CO

, rpm, current and voltage Humidity, pressure Velocity, volume flow

Functions:

All functions of testo 650 and testo 950 and Input of duct cross-sections for volume flow calculations Absolute pressure compensation in thermal probes Density calculation for velocity measurement with reference to temperature, humidity and absolute pressure Assessment of volume flow measurements with calculation of total inaccuracy of measurement in accordance with ASHRAE

0563 6501

305,-

Part no.

testo 650

• Humidity, pressure

• Temperature

• CO

, rpm and current/vol-

tage

0563 9501

Part no.

testo 950

• Temperature

• CO

, rpm and

current/voltage

Example of probe

Example of probes

Professional Class Instruments

testo 650

testo 950

testo 400

Proof of temperature

. . . guarantee quality

Sensitive products require the right air conditions during production and storage. The testo 400 includes all the functions needed to analyse air with reference to temperature, humidity and air flow.

Highly accurate and efficient measurement of humidity and temperature is required in many industrial processes to guarantee continuous quality. Testo 650 calculates many moisture measurements like dewpoint and absolute humidity

Guaranteeing quality usually involves maintaining a certain temperature. This ranges in the food industry from frozen food temperatures to component temperatures in the electronics industry. Easy documentation and filing of this measurement data is possible with testo 950.

for reference measurments

Precision temperatures Production

. . . sets standards . . . documents processes

Reference humidity Compressed air unit

Comfort level Air conditioning systems

testo 400 offers standard assessment of temperature, humidity, velocity and CO

for employees, employers and companies such as

HVAC and mechanical contractors.

If the volume flow is too low in HVAC systems, there will be insufficient fresh air. If the volume flow is too high, this will cause inefficient operation. The testo 400 easily calculates the CFM’s of ventilation systems.

testo 650 is setting new standards in accuracy and long-term stability with its worldwide inter-laboratory tests carried out in leading international institutes enabling accurate monitoring of air humidity fluctuations of ± 1 %RH.

Extensive economic damage, depending on the application, could be caused by uncontrolled moisture ingress. It is possible to measure and document readings over a long period of time using the testo

650.

testo 950 has a system accuracy of 0.09°F in the measurement range from 32 to 200°F and a resolution of up to 0.001°F when used together with precision probe 0614 0240. This high accuracy level makes testo 950 ideal as a working standard.

Products and systems are subjected to different temperatures during a production process. testo 950 has extensive monitoring options, for example, a measurement program is started when a temperature value is exceeded.

Organize - Measure - Printout on-site

Data Control & Analysis

Page- Change Page+

1 testo 400

Program Start

.Week 35/02

Save Delete

+ HALL A1

+ HALL A2 + HALL C3

Page- Change Page+

2 testo 400

..HALL A1

WINDOW L1

WINDOW L2 WINDOW L3 WINDOW R1 WINDOW R2 Door 1 Door 2

Speicher

Fühler Spezial Gerät Drucken Sprache

Read out

Progr.

Keylock Mode

Start

Meas rate End Save Delete

Speicher

Fühler Spezial Gerät Drucken Sprache

Read out

Progr.

Keylock Mode

Start

Messrate Ende Speichern Löschen

Falls short Exceeds

Manual

Date/Time

0008 Mean

Continue New End

0.22

m/s

965.00 m3/h

27.70 °C

02.01.02 23:26:38 Mean Multi-point

WINDOW L1

1 m/s2 m3/h 3 °C

- - - - - - - - - - 01 0.23 1010 27.7

02 0.22 960 27.7 03 0.20 880 27.7 04 0.21 920 27.7 05 0.20 870 27.7 06 0.24 1040 27.7 07 0.25 1070 27.7 08 0.23 970 27.7

Mean:

- - - - - - - - - - 1 0.22 m/s 2 965.00 m3/h

27.70 °C

- - - - - - - - - - -

Info:

Req. value 1000 m3/h

02.01.02 23:33:50

02.01.02 23:26:38 Mean Multi-point

WINDOW L1

02.01.02 23:26:38

02.01.02 23:26:45

Time axis:

0 s / div.

-- m3/h

870 1070

Mean:

- - - - - - - - - - 1 0.22 m/s

965.00 m3/h

27.70 °C

- - - - - - - - - - -

Info:

Req. value 1000 m3/h

02.01.02 23:41:48

Organizing Data:

Save readings at each location

The “tree structure” (files, sub-files and measurement programs) guarantees

clear viewing

Additional information, such as user notes or required value inputs,

can be saved with the location/file.

Use of the optional bar code pen accesses locations with incredible speed and accuracy.

Measuring assignments can be uploaded for effective time use and planning

Long-term Recordings

User-friendly data logging

TThhee bbeeggiinnnniinngg ooff tthhee mmeeaassuurreemmeenntt ccaann bbee......

- determined manually each time.

- activated if a user defined limit value is exceeded

set according to date/time.

TThhee mmeeaassuurreemmeenntt iiss ccoommpplleetteedd wwhheenn......

- the predefined number of readings is reached.

- date/time is reached.

- the memory is full

- input manually.

NNoonn--ssttoopp wwrraapp--aarroouunndd mmeemmoorryy......

- deletes the oldest respective value.

- can be de-activated manually.

Documentation on-site:

The individual programs can be either saved or deleted following analysis.

The printer immediately provides documentation.

The attachable comfort printer also offers graphical analysis options

Thermal paper printouts are legible for up to 10 years

+ 16 hidden pages