SAP1000/SAP2500
Active Probe
User Manual
EN01A
CONTENTS
1 SAFETY INSTRUCTIONS .................................................................................................................................... 2
1.1 SYMBOLS ............................................................................................................................................................ 3
1.2 OPERATING ENVIRONMENT ............................................................................................................................... 3
1.3 CALIBRATION ...................................................................................................................................................... 4
1.4 CLEANING ........................................................................................................................................................... 4
1.5 ABNORMALITIES ................................................................................................................................................. 4
2 FIRST STEPS .......................................................................................................................................................... 6
2.1 DELIVERY CHECKLIST ........................................................................................................................................ 6
2.2 FUNCTIONAL CHECK .......................................................................................................................................... 6
2.3 QUALITY ASSURANCE ........................................................................................................................................ 7
2.4 MAINTENANCE AGREEMENT .............................................................................................................................. 8
3 MECHANICAL DIMENSION ................................................................................................................................ 9
4 ACCESSORIES .................................................................................................................................................... 10
5 PROBE OPERATION .......................................................................................................................................... 14
5.1 CONNECTING THE PROBE TO AN OSCILLOSCOPE .......................................................................................... 14
5.2 CONNECTING THE PROBE TO THE TEST CIRCUIT .......................................................................................... 14
6 SPECIFICATIONS................................................................................................................................................ 16
SAP1000/SAP2500 Active Probe User Manual 1
1 Safety Instructions
Carefully read the following safety precautions to avoid person injury and
prevent damage to the instrument and any products connected to it. To avoid
potential hazards, please use the instrument as specified.
This section contains instructions that must be observed to keep this
oscilloscope accessory operating in a correct and safe condition. You are
required to follow generally accepted safety procedures in addition to the
precautions specified in this section. The overall safety of any system
incorporating this accessory is the responsibility of the assembler of the
system.
Connect and disconnect properly. Connect probe to the measurement
instrument before connecting the test leads to a circuit/signal being tested.
Use only within operational environment listed. Do not use in wet or
explosive atmospheres.
Ground the product. This product is indirectly grounded through the
grounding conductor of the mainframe power cord. To avoid electric shock, the
grounding conductor must be connected to earth ground. Before making
connections to the input or output terminals of the product, ensure that the
product is properly grounded.
Use indoors only.
Keep product surfaces clean and dry.
Be careful with sharp tips. The tips may cause bodily injury if not handled
properly.
2 SAP1000/SAP2500 Active Probe User Manual
Do not operate with suspected failures. Do not use the probe if any part is
CAUTION. Potential for damage to probe or instrument it is
connected to. Attend to the accompanying information to protect
against personal injury or damage. Do not proceed until conditions
are fully understood and met
damaged. Cease operation immediately and sequester the probe from
inadvertent use.
1.1 Symbols
These symbols may appear on the probe body or in this manual to alert you to
important safety considerations.
1.2 Operating Environment
The accessory is intended for indoor use and should be operated in a clean,
dry environment. Before using this product, ensure that its operating
environment is maintained within these parameters:
Temperature： 5°to 40°C.
Humidity：Maximum relative humidity 80 % for temperatures up to 30 °C
decreasing linearly to 50 % relative humidity at 40° C.
Altitude：Up to 10,000 ft (3,048 m).
SAP1000/SAP2500 Active Probe User Manual 3
WARNING: Do not operate this product in explosive, dusty or humid
air.
CAUTION: Do not exceed the specified maximum input voltage.
See technical data for details.
CAUTION: The probe case is not sealed and should never be
immersed in any fluid.
1.3 Calibration
The recommended calibration interval is one year from the time the probe is
put into service.
1.4 Cleaning
The exterior of the probe and cable should be cleaned, using a soft cloth
moistened with water. The use of abrasive agents, strong detergents, or other
solvents may damage the probe. Always ensure that the input leads are free of
debris.
1.5 Abnormalities
This probe should only be used for the purpose specified by the manufacturer.
The probe may be damaged when it exhibits visible damage or is subjected to
4 SAP1000/SAP2500 Active Probe User Manual
severe transportation pressure. If you suspect that the probe is damaged,
WARNING: Using the probe in a manner not specified by the
manufacturer may damage the probe. This probe and related
accessories should not be directly connected to the human body or
used for patient monitoring.
immediately disconnect the probe from the oscilloscope. In order to use the
probe correctly, all instructions and markings should be read carefully.
SAP1000/SAP2500 Active Probe User Manual 5
2 First Steps
2.1 Delivery Checklist
First, verify that all items listed on the packing list have been delivered. If you
note any omissions or damage, please contact your nearest SIGLENT
customer service center or distributor as soon as possible. If you fail to contact
us immediately in case of omission or damage, we will not be responsible for
replacement.
Figure 1 SAP2500 Active Probe
2.2 Functional Check
The function check needs to use the oscilloscope that supports SAPBus
interface. Please follow the steps below to check the probe function.
1. Turn on the oscilloscope and warm up for 20 minutes.
2. Connect the active probe to channel 1 of the oscilloscope.
3. Open the parameter bar of channel 1 and check the probe information,
6 SAP1000/SAP2500 Active Probe User Manual
including probe model, serial number, bandwidth, impedance, capacitance,
and attenuation ratio.
4. Select the channel to which the probe is connected. Set the oscilloscope
scale factor to 2 V/div. Set the oscilloscope offset factor to 0 V.
5. Measure the average voltage of channel 1, and the reading range should
be within ± (1.5%* full-screen reading +10mV). If the reading is beyond the
range, the check will not pass.
6. Change the scale factor of channel 1 to 1 V/div, 500 mV/div, 200 mV/div,
100 mV/div, 50 mV/div, 20 mV/div, 10 mV/div, and repeat Step 5 to check
the average voltage reading at each scale.
2.3 Quality Assurance
The oscilloscope has a 3-year warranty (1-year warranty for probe and
accessories) from the date of shipment, during normal use and operation.
SIGLENT can repair or replace any product that is returned to the authorized
service center during the warranty period. We must first examine the product to
SAP1000/SAP2500 Active Probe User Manual 7
make sure that the defect is caused by the process or material, not by abuse,
negligence, accident, abnormal conditions, or operation.
SIGLENT shall not be responsible for any defect, damage, or failure caused by
any of the following:
a) Attempted repairs or installations by personnel other than SIGLENT.
b) Connection to incompatible devices/incorrect connection.
c) For any damage or malfunction caused using non-SIGLENT supplies.
Furthermore, SIGLENT shall not be obligated to service a product that has
been modified. Spare, replacement parts and repairs have a 90-day
warranty.
2.4 Maintenance Agreement
We provide various services based on maintenance agreements. We offer
extended warranties as well as installation, training, enhancement and on-site
maintenance, and other services through specialized supplementary support
agreements. For details, please consult your local SIGLENT customer service
center or distributor.
8 SAP1000/SAP2500 Active Probe User Manual
3 Mechanical Dimension
Characteristic
Description
SAPBus interface
box
115.0 mm × 38.9 mm × 24.5 mm
Probe head
83.0 mm × 14.1 mm × 6.4 mm
Cable length
1.3 m (from the probe head to the compensation box)
SAP1000/SAP2500 Active Probe User Manual 9
Standard Accessory
Part Number
Quantity
Unit
Straight Tip
2.74.70.12.003
5
pcs
Pogo Tip
2.74.70.12.004
5
pcs
L-In Adapter
2.74.70.12.005
1
pcs
Z-Ground
2.74.70.12.006
1
pcs
Y Lead Adapter
2.52.42.11.020
1
pcs
Right Angle Pin Lead 5cm
2.52.42.11.016
1
pcs
Straight Pin Lead 6cm
2.52.42.11.017
1
pcs
Right Angle Pin Lead 10cm
2.52.42.11.018
1
pcs
Straight Pin Lead12cm
2.52.42.11.019
1
pcs
Channel ID Clips (Set of 4
colors)
2.75.23.10.003
1
set
4 Accessories
The SAP1000 and SAP2500 probes are provided with numerous features and
accessories to make probing and connecting to different test points easier than
ever.
10 SAP1000/SAP2500 Active Probe User Manual
Figure 2 Accessories
Straight Tip：The straight tip is rugged and designed for general probing. Fits
in either probe socket.
SAP1000/SAP2500 Active Probe User Manual 11
Pogo Tip：The pogo tip provides z axis compliance. The tip can fit into a socket
or via and onto an IC leg.
L-In Adapter：These leads have a socket on one end with a right angle and a
square pin on the other to connect to the input or ground socket of the probe
body and is recommended in high frequency applications.
Z-Ground：The offset pin is designed to be attached to either socket of the
probe head. The offset pin is the highest quality grounding solution and is
recommended in high frequency applications.
Y Lead Adapter：This lead is used for both ground and input lead
simultaneously. It has two sockets on one end and two square pins on the
other and may be used for general purpose probing.
Straight Pin Leads：These leads have a socket on one end and a square pin
12 SAP1000/SAP2500 Active Probe User Manual
on the other to connect to the input or ground socket of the probe body, and
may be used for general purpose probing.
Right Angle Pin Leads: These leads have a socket on one end with a right
angle and a square pin on the other to connect to the input or ground socket of
the probe body, and may be used for general purpose probing.
Channel ID Clips：They are used to distinguish the oscilloscope channel that
the probe is connected to.
SAP1000/SAP2500 Active Probe User Manual 13
ESD Sensitive: The tips of the probes are sensitive to Electrostatic
Discharge (ESD). Avoid causing damage to the probe by always following
anti-static procedures (wear wrist strap, etc.) when using or handling the
probe.
5 Probe Operation
The SAP series probe is a precision test instrument. Exercise care when
handling and storing the probe. Always handle the probe by the probe body or
compensation box. Avoid putting excessive strain or exposing the probe cable
to sharp bends.
5.1 Connecting the Probe to an Oscilloscope
The SAP1000 and SAP2500 probes have been designed for use with Siglent’s
SDS5000X and SDS6000A platforms equipped with the SAPBus interface.
When you attach the probe output connector to the oscilloscope’s input
connector, the oscilloscope recognizes the probe, and provides proper
termination.
5.2 Connecting the Probe to the Test Circuit
To maintain the high-performance capability of the probe in measurement
applications, care must be exercised in connecting the probe to the test circuit.
14 SAP1000/SAP2500 Active Probe User Manual
Increasing the parasitic capacitance or inductance in the input paths may
introduce a “ring” or slow the rise time of fast signals. Input leads which form a
large loop area will pick up any radiated electromagnetic field which passes
through the loop and may induce noise into the probe input.
Using one of the available accessories makes the SAP2500 probe with its
small profile and low mass head ideally suited for applications in dense
circuitry.
The amplifier inside the probe has a limited linear working range. In order to
ensure that the input linearity error is less than 3%, the amplitude of the input
signal needs to be limited to ±8 V. The probe has a DC offset adjustment
function, which can adjust the DC offset to eliminate the DC component in the
test signal and maximize the performance of the probe. The DC offset
adjustment range is ±12 V.
SAP1000/SAP2500 Active Probe User Manual 15
6 Specifications
The SAP1000 and SAP2500 are compact, high impedance active probe
designed to meet today’s increasing demand for measurements on a variety of
test points. With low input capacitance and high input resistance, circuit
loading is minimized.
With the SAPBus interface, the SAP1000 and SAP2500 become an integral
part of the oscilloscope. The probe can be controlled from the oscilloscope’s
front panel. The oscilloscope provides power to the probe, so there is no need
for a separate power supply or batteries.
Key Benefits
Bandwidth
DC ~ >2.5 GHz（SAP2500）
DC ~ >1.0 GHz（SAP1000）
1 MΩ Input Resistance
10X Attenuation
Low Input Capacitance
±8 Volts Dynamic Range with ±12 Volts offset capablity
SAPBus interface
16 SAP1000/SAP2500 Active Probe User Manual
The specifications of the probe need to meet the following conditions:
Characteristics
SAP1000
SAP2500
Bandwidth (probe only)
>1 GHz
>2.5 GHz
Bandwidth (with scope)
1 GHz（SDS5104X）
2 GHz（SDS6204A）
Input capacitance
1.2 pF
1.1 pF
Input resistance
1 MΩ
Offset range
±12 V
Attenuation ratio (DC)
÷10
Offset accuracy
< 3%
DC gain accuracy
< 3%
Input dynamic range
±8 V
Maximum input voltage
(non-destruct)
20 V
Cable length
130 cm
1. The probe is within the validity period of calibration.
2. The ambient temperature is within 25℃±5℃.
3. The probe is correctly connected to the oscilloscope.
4. The probe and oscilloscope are in a thermally stable environment, and the
probe and oscilloscope should be warmed up for at least 20 minutes.
Warranted characteristics:
SAP1000/SAP2500 Active Probe User Manual 17
Figure 3 Typical frequency response of SAP2500
Figure 4 Input impedance over frequency of SAP2500
18 SAP1000/SAP2500 Active Probe User Manual
SAP1000/SAP2500 Active Probe User Manual 19
Loading...