36-pin connector to interface with component handler via input/output control signals.
Includes bin and list sweep comparator results and end of measurement (EOM) indicator
output signals, external trigger, and key lock input signal.
2
www.bkprecision.com
500 kHz / 1 MHz Precision LCR Meter
Models 894 & 895
Powerful Features
Programmable List sweep
Bin sorting function
Remote PC control
Use the built-in linear and logarithmic sweep
function, supporting up to 201 sweep points, to
conveniently display, analyze and store
primary and secondary parameters of a
component. Sweep test frequency, AC source
voltage and current levels, DC bias source
voltage and current levels. A delay can be
programmed after each sweep point. The list
sweep can be triggered internally, manually or
externally and executed in sequence or step
mode.
Transformer measurements (optional)
Using optional test fixture TL89T1, the 894
and 895 can test the primary and secondary
inductance L1, L2, turn ratio (N, 1/N), mutual
inductance (M), and primary and secondary
direct-current resistance (R2) of a transformer
directly. Additionally, the two common
transformer parameters winding equivalent
capacitance C and leakage inductance L can
o
k
be characterized indirectly.
Quickly sort components using the instrument’s 9
primary BINs, a secondary BIN and
out-of-specification BIN. The results can be
displayed in a table on-screen or output via
the handler interface. High and low limits for
each bin can be set up in absolute, tolerance or
sequential mode with Pass/Fail indicator.
Integrate your LCR meter into an automated test
system and control it from a PC using SCPI
commands via the RS232, USB, LAN, or
GPIB (895 only) interface.
Diagram showing the TL89T1 connected to a
transformer under test.
Flexible test accessories
Standard accessories shipped with each unit are Kelvin clip test leads for 4-wire measurements, a test fixture, and shorting bar. The optional transformer test
fixture allows users to measure transformer parameters.
Included
Optional
Test fixture (TL89F2)
Kelvin clips (TL89K1)
Shorting bar (TLBSB)
SMD test fixture (TL89S1)
Transformer test fixture (TL89T1)
3
www.bkprecision.com
500 kHz / 1 MHz Precision LCR Meter
Models 894 & 895
Specifications
Valid after 30 minutes of warm up time, operating at 23 °C ± 5 °C
Test Signal Frequency
Model
894
895
Range
Minimum resolution
Accuracy
Cable length compensation
Math operations
Trigger mode
Delay time setup
Measurements
0, 1, & 2 meters
Direct reading,
∆ABS, ∆%
Internal, Manual, External, Bus
Time from trigger to start: 0 to 60 seconds
Resolution: 1 ms
10-bin sorting, primary bins BIN1-BIN9 and OUT,
secondary bin AUX
Comparator
(Bin sorting)
20 Hz - 500 kHz
20 Hz - 1 MHz
0.01 Hz
0.01 %
Test Signal Levels
AC source (ALC* OFF)
Voltage Accuracy
Voltage Level
10% x set voltage ± 2mV
Resolution
Bin counter: 0 to 999,999
PASS/FAIL indication via front panel LED or
handler interface signal
5 mVrms - 100 mVrms
100 mVrms - 1 Vrms
1 Vrms - 2 Vrms
Current Accuracy
Current Range
100 µVrms
1 mVrms
10 mVrms
10 % x set current ± 10 µA
Impedance
201 sweep
points
Measurement
parameters
Sweep modes
Trigger mode
Comparator
Sweep test frequency, test signal AC voltage, test signal
AC current, test signal DC bias voltage and test signal
DC bias current
Primary and secondary
Linear or logarithmic
Sequential and Step
One pair of lower and upper limits for primary or
secondary parameter (user selectable)
Save / recall 40 setups
166.7 µArms - 66.7 mArms
100.0 µArms - 40.0 mArms
50.0 µArms - 20.0 mArms
AC source (ALC* ON)
1
Voltage
30
Ω
50
Ω
100
Ω
List sweep
Range
Accuracy
Range
Accuracy
Range
10 mVrms – 1 Vrms
6% x set voltage ± 2 mV
100 µArms - 10 mArms
6 % x set current ± 10 µA
-5 V to +5 V
1 % x set voltage ± 5 mV
0.01 mV
-50 mA to +50 mA
1 % x set current ± 50 µA
0. 1 µA
Internal non-volatile
memory
Current
DC bias source
General
External USB memory
Remote interface
Handler interface
AC input
Save / recall setups, screenshots, measurements and
sweep data logs
USB (USBTMC or virtual COM), RS232, LAN,
GPIB (895 only)
36-pin connector
110/220 VAC ±10%
47 – 63 Hz
Max. 80 VA
0 °C to 40 °C
-10 °C to 70 °C
Up to 80%
4.3” TFT color display
without bezel: 280 mm × 88 mm × 370 mm
(11.02“ x 3.46” x 14.56”)
with bezel: 369 mm × 108 mm × 408 mm
(14.52” x 4.25” x 16.06”)
5 kg (11 lbs)
EN61010-1:2001, EU Low Voltage Directive 2006/95/EC
Meets EMC Directive 2004/108/EC, EN61326-1:2006
Voltage
Accuracy
Resolution
Range
Voltage
Frequency
Current
Accuracy
Resolution
Power consumption
Operating temperature
Storage temperature
Relative humidity
Display
*Auto Level Control
1: Resolution and impedance see AC source (ALC OFF) specification
Measurements
Measurement parameters
Transformer measurement parameters
2
Basic accuracy
AC source Output
impedance (± 2%)
Typical measurement time
(≥10 kHz)
L, C, R, G, X, Z, Y, B,
θ,
Q, D, DCR
L2A, L2B, N, 1/N, M
0.05 %
30
Ω,
50
Ω,
100
Ω
Fast
13 ms / measurement
67 ms / measurement
187 ms / measurement
Series, Parallel
Auto, Hold
1-255 measurements
Open, Short and Load correction
Dimensions (WxHxD)
Weight
Safety
Electromagnetic
Compatibility
(excluding display refresh
time)
Equivalent circuit
Range mode
Averaging
Correction function
Medium
Slow
Three-Year Warranty
Standard accessories
Optional accessories
AC power cord, 4-wire Kelvin clip test lead, 4-terminal
test fixture, shorting bar, certificate of calibration,
test report
Transformer test fixture TL89T1
2: Requires optional fixture TL89T1
4
www.bkprecision.com
500 kHz / 1 MHz Precision LCR Meter
Models 894 & 895
Measurement Accuracy
The chart below depicts the basic measurement accuracy under the following conditions: AC test signal level 0.5 Vrms or 1 Vrms, measurement speed Slow
or Medium, cable length 0 m, DC bias OFF, Dx
≤
0.1 or Qx
≤
0.1 respectively. When selecting measurement speed Fast, double the accuracy value obtained
from the chart.
For more detailed measurement accuracy specifications and other test conditions, refer to the user manual.
DCR Accuracy:
A(1 + Rx / 5 MΩ + 16 mΩ / Rx)[%] ±0.2 mΩ A=0.25 for slow & medium speed, A=0.5 for fast speed
京公网安备 11010802033920号
EEWORLD
